=

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ACRONYMS - "TOOTKA"
- 2D
- 2-Dimensional
- 3ACC
- 3A Central Control
- 3D
- 3-Dimensional
- 3M
- Minnesota Mining and Manufacturing
- 4GL
- Fourth Generation Language
- 4H
- Head, Heart, Hands, Health
- 5XBCOER
- 5 X-Bar Central Office Equipment Reports system, "5XB =
COER"
- A
- Aftermath
- AA
- Administrative Assistant
- AA
- Affirmative Action committee
- AA
- Alcoholics Anonymous
- AA
- American Airlines
- AA
- Antiaircraft Artillery
- AA
- Associate in Accounting
- AA
- Astronomy and Astrophysics, "A&A"
- AA
- Automobile Association (in England)
- AAA
- American Automobile Association
- AAA
- Anti-Aircraft Artillery
- AAAAAA
- Association for the Abolition of Abused Abbreviations and =
Asinine=20
Acronyms
- AAAL
- American Academy of Arts and Letters
- AAAS
- American Association for the Advancement of Science
- AAII
- American Association of Individual Investors
- AAMSI
- American Association for Medical Systems Informatics
- AAO
- Anglo-Australian Observatory
- AAP
- Affirmative Action Program
- AARC
- Anglo-American Cataloging Rules
- AARP
- Appletalk ARP
- AAS
- American Astronomical Society
- AAS
- Atom Absorption Spectrometry
- AAVSO
- American Association of Variable Star Observers
- AAX
- Automated Attendant eXchange
- AB
- Able Bodied seaman
- ABA
- American Bar Association
- ABA
- American Basketball Association
- ABA
- American Booksellers Association
- ABATS
- Automatic Bit Access Test System
- ABBR
- ABBReviation
- ABC
- American Broadcasting Company
- ABEL
- Advanced Boolean Expression Language (a Data-I/O =
Trademark)
- ABHC
- Average Busy Hour Calls
- ABI
- American Bell Inc
- ABI
- Application Binary Interface (SunOS and SV application sw=20
interface std)
- ABM
- Asynchronous Balanced Mode
- ABS
- Acrylonitrile Butadiene-Styrene (plastic)
- ABS
- Alternative Billing Service
- ABS
- American Bureau of Shipping
- ABS
- Anti-Blocking System
- ABSBH
- Average Busy Season Busy Hour
- AC
- Access Control
- AC
- Adaptive Control
- AC
- Alternating Current (ac, see also DC)
- AC
- Answer Center (Sun)
- AC
- Ante Christum (before Christ)
- AC
- Ante Cibum (before meals)
- ACAA
- Agricultural Conservation and Adjustment =
Administration
- ACAWS
- Advisory, Caution, And Warning System
- ACB
- Annoyance Call Bureau
- ACBL
- American Contract Bridge League
- ACC
- Argonne Code Center
- ACC
- Audio Communications Controller
- ACCRA
- American Chamber of Commerce Research Association
- ACCS
- Army Command and Control System
- ACCS
- Automated Calling Card Service
- ACCT
- Account
- ACD
- Automatic Call Distributor [telephony]
- ACDA
- Automatic Call Disposition Analyzer
- ACE
- Advanced Composition Explorer
- ACE
- Advanced Computing Environments [Corporate name]
- ACE
- Automatic Calibration and Equalization
- ACE
- Automatic Calling Equipment
- ACF
- Advanced Communications Functions
- ACH
- Attempt per Circuit per Hour
- ACHEFT
- Automated ClearingHouse Electronic Funds Transfer
- ACIA
- Asynchronous Communications Interface Adapter
- ACK
- ACKnowledge
- ACK
- Amsterdam Compiler Kit
- ACL
- Access Control List
- ACL
- Advanced Cmos Logic
- ACLU
- American Civil Liberties Union
- ACM
- Access Control Machine
- ACM
- Association for Computing Machinery
- ACO
- Acronym Control Officer
- ACOF
- Attendant Control Of Facilities
- ACP
- ACtion Point
- ACRNEMA
- a medical imaging standard, "ACR/NEMA"
- ACRONYM
- Another Cryptically Rendered Obfuscatory Narrative =
Yielding=20
Meaning
- ACRV
- Assured Crew Return Vehicle (or) Astronaut Crew Rescue =
Vehicle
- ACS
- Advanced Communications System
- ACS
- Australian Computer Science
- ACSE
- Association Control Service Entity (ISO/CCITT layer 7)
- ACSNET
- Acedemic Computing Services NETwork
- ACSU
- Advanced t-1 Channel Service Unit
- ACTPU
- ACTivate Physical Unit (SNA)
- ACTS
- Advanced Communications Technology Satellite
- ACTS
- Automated Coin Toll Service
- ACTS
- Automatic Coin Telephone Service [telephony]
- ACTUP
- AIDS Coalition To Unleash Power, "ACT UP"
- ACU
- Alarm Control Unit
- ACU
- Automatic Calling Unit
- ACW
- Alternating Continuous Waves
- ACWP
- Actual Cost of Work Performed
- AD
- Addendum
- AD
- After Date
- AD
- Analog to Digital converter, "A/D" (see ADC)
- AD
- Anno Domini (in the year of our Lord)
- AD
- Application Development
- ADA
- Air Defense Artillery
- ADA
- Alternate Delay Accumulation
- ADB
- A DeBugger
- ADB
- Apple Desktop Bus
- ADC
- Analog to Digital Converter
- ADCCP
- Advanced Data Communications Control Procedure
- ADCI
- Automatic Display Call Indicator
- ADD
- Advanced Dungeons & Dragons, "AD&D"
- ADDCP
- Advanced Data Communication Control Procedure
- ADEW
- Andrew Development Environment Workbench
- ADF
- Automatic Direction Finder
- ADFRF
- Ames-Dryden Flight Research Facility (was DFRF) (NASA)
- ADI
- Acceptable Daily Input
- ADI
- Anolog Device Inc
- ADM
- ADMiral
- ADM
- Additional Dealer Markup
- ADM
- Advanced Micro Devices
- ADMD
- Administration Management Domain
- ADN
- Abbreviated Dialing Number
- ADP
- Adenosine Di-Phosphate
- ADP
- Administrative Data Processing
- ADP
- Advanced Data Processing
- ADP
- Automatic Data Processing
- ADPCM
- Pulse Code Modulation with Adaptive Quantization
- ADS
- Advanced Digital System
- ADS
- Application Development System
- ADS
- Audio Distribution System
- ADS
- Automatic Voice System
- ADS
- Auxilary Data System
- ADSP
- AppleTalk Data Stream Protocol
- ADSR
- Attack Decay Sustain Release
- ADT
- Abstract Data Type
- ADT
- Atlantic Daylight Time
- AE
- Application Entity/Environment/Execution/Engineering =
(APE)
- AEA
- American Electronics Association
- AEA
- Atomic Energy Authority
- AEC
- Architectural Engineering Construction
- AEC
- Atomic Energy Commission
- AEF
- American Expeditionary Force (see BEF)
- AEGIS
- Advanced Electronic Guidance and Instrumentation =
System
- AES
- Application Environment Specification
- AF
- Address Family (sockets)
- AF
- Adventures in Fantasy
- AF
- Air Force
- AF
- Audio Frequency
- AFACTS
- Automatic FACilities Test System
- AFADS
- Automatic Force Adjustment Data System
- AFATDS
- Advanced Field Artillery Tactical Data System
- AFB
- Air Force Base
- AFC
- American Football Conference
- AFC
- Automatic Frequency/Flight Control
- AFCAC
- Air Force Computer Acquisition Center
- AFCC
- Air Force Communications Command
- AFGE
- American Federation of Government Employees
- AFI
- Authority and Format Identifier
- AFIPS
- American Federation of Information Processing =
Societies
- AFL
- American Federation of Labor
- AFL
- American Football League
- AFLCIO
- American Federation of Labor; Congress of Industrial=20
Organizations, "AFL-CIO"
- AFM
- Adobe Font Metrics
- AFNOR
- Association Francaise de NORmalization
- AFP
- Appletalk Filing Protocol
- AFS
- Andrew File System
- AFSC
- Air Force Systems Command
- AFSCME
- American Federation of State, County and Municipal =
Employees
- AFSK
- Automatic Frequency Shift Keying
- AFTRA
- American Federation of Television and Radio Artists
- AFUU
- Association Francaise des Utilisateurs d'Unix
- AG
- Adjutant General
- AG
- Arcade Game
- AG
- Attorney General
- AGCT
- Army General Classification Test
- AGL
- Above Ground Level
- AGM
- Air-to-Ground Missile
- AGN
- Active Galactic Nucleus
- AGU
- American Geophysical Union
- AH
- Artificial Horizon
- AH
- Avalon Hill (major war game manufacturer)
- AHA
- American Homebrew Association
- AHL
- American Hockey League
- AHQ
- Air HeadQuarters
- AI
- Allegheny International
- AI
- Amnesty International
- AI
- Anal Intrusion
- AI
- Artificial Insemination
- AI
- Artificial Intelligence
- AI
- Attitude Indicator
- AIA
- American Institute of Architects
- AIA
- Application Integration Architecture
- AIAA
- American Institute of Aeronautics and Astronautics
- AIC
- Automatic Intercept Center
- AICC
- Automatic Intercept Communications Controller
- AID
- Agency for International Development
- AIDDE
- Ames' Interactive Dynamic Display Editor
- AIDS
- Acquired ImmunoDeficiency Syndrome
- AIM
- Air Interception Missile
- AIM
- Airman's Information Manual
- AIMS
- Advanced Inventory Management System
- AIOD
- Automatic Identification Outward Dialing
- AIPS
- Astronomical Image Processing System
- AIS
- Action Item System
- AIS
- Automatic Intercept System
- AIX
- Advanced Interactive eXecutive (unix)
- AJ
- Astronomical Journal
- AK
- Alaska
- AKA
- Also Known As
- AL
- Alabama
- AL
- American League (baseball)
- ALA
- American Library Association
- ALA
- Automobile Legal Association
- ALAP
- AppleTalk-LocalTalk Link Access Protocol
- ALBM
- Air-to-Land Ballistic Missile
- ALBO
- Automatic Line BuildOut
- ALC
- Automatic Load Control
- ALEXIS
- Array of Low Energy X-ray Imaging Sensors
- ALFA
- Anonima Lombarda Fabbrica Automobili
- ALFE
- Analog Line Front End
- ALGOL
- ALGorithmic Oriented Language
- ALI
- Automatic Location Indentification
- ALIT
- Automatic Line Insulation Testing
- ALM
- Asychronous Line Module
- ALM
- Asynchronous Line Multiplexer
- ALPO
- Association of Lunar and Planetary Observers
- ALRU
- Automatic Line Record Update
- ALS
- Advanced Launch System [Space]
- ALS
- Automated List Service
- ALU
- Arithmetic Logic Unit
- AM
- Administrative Module
- AM
- Agricultural and Mechanical, "A&M"
- AM
- Air Marshal
- AM
- Alpes-Maritimes, "A.-M."
- AM
- American, "Am."
- AM
- Americium, "Am"
- AM
- Amplitude Modulation
- AM
- Ante Meridiem, "a.m." (before noon)
- AM
- anno mundi (in the year of the world)
- AMA
- American Medical Association
- AMA
- Association for Model Aviation
- AMA
- Automatic Message Accounting
- AMACS
- Automatic Message Accounting Collection System
- AMARC
- Automatic Message Accounting Recording Center
- AMASE
- Automatic Message Accounting Standard Entry
- AMAT
- Automatic Message Accounting Transmitter
- AMATPS
- Automatic Message Accounting TeleProcessing System
- AMBA
- Association of Master of Business Administration
- AMC
- Albany Medical College
- AMD
- Advanced Micro Devices [Corporate name]
- AMERITECH
- AMERican Information TECHnologies
- AMEX
- AMerican EXpress
- AMI
- American Micro System Inc
- AMORC
- Ancient Mystic Order Rosae Crucis
- AMP
- Adenosine MonoPhosphate
- AMPAS
- Academy of Motion Picture Arts and Sciences
- AMPS
- Advanced Mobile Phone Service
- AMRAAM
- Advanced Medium Range Air-To-Air Missile
- AMROC
- American Rocket Company [Space]
- AMSAT
- radio AMateur SATellite corp.
- AMT
- Active Memory Technology
- AMU
- Atomic Mass Unit
- AMVET
- AMerican VETeran
- AN
- Associated Number
- ANA
- American Nurses Association
- ANA
- Automatic Number Announcement
- ANAC
- Automatic Number Announcement Circuit [telephony]
- ANC
- All Number Calling [telephony]
- ANC
- American Network Communications
- ANC
- Army Nurse Corps
- ANDF
- Architecture-Neutral Distribution Format
- ANF
- Automatic Number Forwarding
- ANG
- Air National Guard
- ANI
- Automatic Number Identification [telephony]
- ANIF
- Automatic Number Identification Failure
- ANL
- Argonne National Laboratory
- ANOVA
- ANalysis Of VAriance
- ANPA
- American Newspaper Publishers Association
- ANSI
- American National Standards Institute
- ANU
- Australian National University
- ANZUS
- Australia, New Zealand, United States
- AO
- Account Of
- AOA
- Abort Once Around (Shuttle abort plan)
- AOCS
- Attitude and Orbit Control System
- AOL
- Absent Over Leave (see AWOL)
- AOP
- Annual Operating Plan
- AOPA
- Aircraft Owners and Pilots Association
- AOQ
- Average Outgoing Quality
- AOS
- Academic Operating System
- AOS
- Alternate Operator Service [telephony]
- AOSS
- Auxilliary Operator Service System
- AOW
- Asia and Oceania Workshop
- AP
- Accounts Payable, "A/P"
- AP
- Additional Premium
- AP
- All Points
- AP
- Application Process
- AP
- Associated Press
- AP
- Attached Processor
- APA
- All Points Addressable
- APB
- All Points Bulletin
- APC
- AMARC Protocol Converter
- APDA
- Apple Programmers and Developers Association
- APDU
- Application Protocol Data Unit
- APE
- APplication Engineering
- APG
- Aberdeen Proving Ground
- API
- American Petroleum Institute
- API
- Application Program(ming) Interface
- APICS
- American Production and Inventory Control Society
- APJ
- Astrophysical Journal, "Ap.J", "ApJ"
- APL
- A Programming Language
- APM
- Attached Pressurized Module (a.k.a. Columbus)
- APO
- Alpha Pi (?) Omega, service fraternity
- APO
- Army Post Office
- APP
- Application Portability Profile
- APPC
- Advanced Peer-to-Peer Communications
- APPC
- Advanced Program-to-Program Communication (IBM)
- APR
- Annual Percentage Rate
- APS
- Automatic Protection Switch
- APSE
- Ada Programming Support Environment
- APT
- Attached Proton Test
- APU
- Auxiliary Power Unit
- AQ
- Accumulator-Quotient register
- AQL
- Acceptable Quality Level
- AR
- Accounts Receivable, "A/R"
- AR
- Address Register
- AR
- Alarm Report
- AR
- Arkansas
- ARAMIS
- American Rheumatic Arthritis Medical Information =
System
- ARC
- Advanced RISC Computing
- ARC
- American Red Cross
- ARC
- Ames Research Center (NASA)
- ARC
- Audio Response Controller
- ARCNET
- Attached Resource Computer local area NETwork
- ARCO
- Atlantic Richfield COmpany
- ARIS
- Audichron Recorded Information System
- ARLL
- Advanced Run-Length Limited encoding
- ARM
- Acorn Risc Machine
- ARM
- Adjustable Rate Mortgage
- ARM
- Annotated Reference Manual
- ARO
- After Receipt of Order
- ARP
- Address Resolution Protocol (Internet->Ethernet)
- ARPA
- Advanced Research Projects Agency (of the DoD, see =
DARPA)
- ARPANET
- Advanced Research Projects Agency NETwork
- ARQ
- Automatic Repeat reQuest
- ARRL
- Amateur Radio Relay League
- ARS
- Alternate Route Selection
- ARSA
- Airport Radar Service Area
- ARSB
- Automated Repair Service Bureau
- ARTCC
- Air Route Traffic Control Center
- ARTEMIS
- Advanced Relay TEchnology MISsion
- ARU
- Audio Response Unit
- ARV
- American Revised Version
- AS
- Anglo-Saxon
- ASA
- Acetyl Salicylic Acid
- ASA
- American Standards Association (now ANSI)
- ASA
- Astronomical Society of the Atlantic
- ASAIGAC
- As Soon As I Get A Chance
- ASAP
- As Soon As Possible
- ASC
- Accredited Standards Committee
- ASC
- Additional Sense Code
- ASCAP
- American Society of Composers, Authors, and Publishers
- ASCC
- Automatic Sequence-Controlled Calculator
- ASCII
- American Standard Code for Information Interchange
- ASCQ
- Additional Sense Code Qualifier
- ASDIC
- Anti-Submarine Detection Investigation Committee (British =
for=20
sonar)
- ASDSP
- Application-Specific Digital Signal Processor
- ASG
- Automated Sciences Group
- ASHRAE
- Amer. Soc. of Heating, Refrigerating and Air-cond. =
Engineers,=20
inc.
- ASI
- Agenzia Spaziale Italiano
- ASI
- Asynchronous SCSI Interface
- ASI
- Automatic System Installation
- ASIC
- Application Specific Integrated Circuit
- ASIS
- Aromatic Solvent Induced Shift
- ASK
- Akademische Software Kooperation
- ASK
- Amplitude Shift Keying
- ASM
- American Society of Metals
- ASME
- American Society of Mechanical Engineers
- ASN
- Abstract Syntax Notation
- ASN1
- Abstract Syntax Notation One, "ASN.1"
- ASOC
- Administrative Service Oversight Center
- ASP
- Aggregated Switch Procurement
- ASP
- Appletalk Session Protocol
- ASPEN
- Automatic System for Performance Evaluation of the =
Network
- ASR
- Airport Surveillance Radar
- ASRM
- Advanced Solid Rocket Motor
- ASRS
- Aviation Safety Reporting System
- ASSR
- Autonomous Soviet Socialist Republic
- AST
- Applied System Technology
- AST
- Asyncronous System Trap
- AST
- Atlantic Standard Time
- ASTM
- American Society of Testing and Materials
- ASV
- American Standard Version
- AT
- Access Tandem
- AT
- Advanced Technology
- AT
- Atlantic Time
- ATA
- AT Attachment
- ATA
- Airport Traffic Area
- ATA
- Automatic Trouble Analysis
- ATACC
- Advanced Tactical Air Command Central
- ATB
- Advanced Technology Bomber (stealth bomber)
- ATB
- All Trunks Busy
- ATC
- Air Traffic Control
- ATC
- Atsugi Technical Center
- ATC
- Automatic Transmission Control
- ATDRS
- Advanced Tracking and Data Relay Satellite
- ATE
- Automatic Test Equipment
- ATF
- Advanced Technology Fighter
- ATH
- Abbreviated Trouble History
- ATI
- Automatic Test Inhibit
- ATIS
- Atherton Tools Interface Specification
- ATIS
- Automatic Terminal Information Service
- ATIS
- Automatic Transmitter Identification System
- ATK
- Andrew ToolKit
- ATLAS
- Atmospheric Laboratory for Applications and Science
- ATM
- Adobe Type Manager
- ATM
- Amateur Telescope Maker
- ATM
- Asynchronous Transfer Mode
- ATM
- Automatic Teller Machine
- ATM
- Asynchronous Transfer Mode
- ATMS
- Automated Trunk Measurement System
- ATN
- Automated Test Network
- ATO
- Abort To Orbit (Shuttle abort plan)
- ATOMS
- AT&t Optimized Materials Simulator
- ATP
- Adenosine TriPhosphate
- ATP
- Airline Transport Pilot (highest grade of pilot =
certificate)
- ATP
- All Tests Pass
- ATP
- Appletalk Transaction Protocol
- ATP2
- AppleTalk Phase 2
- ATPCO
- Airline Tariff Publishing COmpany
- ATR
- Alternate Trunk Routing
- ATR
- Apollo Token Ring
- ATRS
- Automated Trouble Reporting System
- ATS
- Automated Test System
- ATT
- American Telephone & Telegraph, "AT&T"
- ATTC
- Automatic Transmission Test and Control circuit
- ATTCOM
- American Telephone & Telegraph COMmunications
- ATTIS
- American Telephone & Telegraph Information Systems
- ATV
- All Terrain Vehicle
- AU
- Arithematic Unit
- AU
- Astronomical Unit (93,000,000 miles) [Space]
- AUDIX
- AUDio Information eXchange
- AUI
- Attachment Unit Interface
- AUP
- Acceptable Use Policy
- AURA
- Association of Universities for Research in Astronomy
- AUS
- Army of the United States
- AUTODIN
- AUTOmatic DIgital Network
- AUTOSEVCOM
- AUTOmatic SEcure Voice COMmunications
- AUTOVON
- AUTOmatic VOice Network
- AUX
- Apple UniX
- AUXF
- AUXillary Frame
- AV
- AudioVisual
- AVD
- Alternate Voice Data
- AVLIS
- Atomic Vapor Laser Isotope Separation
- AVS
- Application Visualization Software
- AWACS
- Airborne Warnings And Control Systems
- AWEA
- American Wind Energy Association
- AWG
- American Wire Gauge
- AWK
- al Aho, peter Weinberger, brian Kernighan (pattern =
scanning=20
language)
- AWOL
- Absent WithOut Leave (also Absent Without Official Leave) =
(see=20
AOL)
- AWST
- Aviation Week and Space Technology (a.k.a. AvLeak),=20
"AW&ST"
- AXAF
- Advanced X-ray Astrophysics Facility [Space]
- AY
- Arther Young
- AZ
- Arizona
- B
- Book
- B
- Byte
- B
- bit, "b"
- B6ZS
- Bipolar with 6 Zero Subsitution
- B911
- Basic 911
- BA
- Bachelor of Arts
- BACH
- Business Alliance for Commerce in Hemp
- BAFO
- Best And Final Offer
- BALUN
- BALanced to UNbalanced
- BAMAF
- BELLCORE AMA Format
- BANCS
- Bell Administrative Network Communications System
- BAPCO
- Bellsouth Advertising & Publishing COmpany
- BARRNET
- Bay Area Regional Research Network, "BARRNet" (SF Bay =
Area)
- BASH
- Bourne-Again SHell
- BASIC
- Beginner's All-purpose Symbolic Instruction Code
- BATSE
- Burst And Transient Source Experiment (on GRO)
- BB
- Bases on Balls
- BB
- Best of Breed
- BB
- Bunnies and Burrows
- BBA
- Bachelor of Business Administration
- BBB
- Better Business Bureau
- BBC
- British Broadcasting Corporation
- BBL
- Barrel
- BBN
- Bolt, Beranek, and Newman [Corporate name]
- BBS
- Bulletin Board System
- BBXRT
- Broad-Band X-Ray Telescope (ASTRO package)
- BC
- Battlecars
- BC
- Before Christ
- BC
- British Columbia
- BCBS
- Blue Cross/Blue Shield, "BC/BS"
- BCC
- Blind/Blank Carbon Copy
- BCC
- Blocked Call Cleared
- BCC
- Block Check Character
- BCD
- Bad Conduct Discharge
- BCD
- Binary Coded Decimal
- BCD
- Blocked Call Delayed
- BCDIC
- Binary Coded Decimal Interchange Code
- BCE
- Before the Common Era (substitute for BC)
- BCP
- Binary Communications Protocol
- BCP
- Byte Controlled Protocols
- BCPL
- Basic Combined Programming Language
- BCR
- Bell Communications Research
- BCS
- Bachelor of Commercial Science
- BCS
- Batch Change Supplement
- BCS
- Binary Compatibility Standard (ABI for Motorola chips)
- BCS
- Boston Computer Society
- BCS
- British Computer Society
- BCS
- Basic Combined Subset
- BCWP
- Budgeted Cost of Work Performed
- BCWS
- Budgeted Cost of Work Scheduled
- BD
- Bachelor of Divinity
- BD
- Bank Draft
- BD
- Bills Discounted
- BDA
- Battle Damage Assessment
- BDA
- Bomb Damage Assessment
- BDC
- Boston Development Center
- BDD
- Basic Dungeons & Dragons, "BD&D"
- BDF
- Binary Distribution Format
- BDF
- Bitmap Description Format (Adobe)
- BDF
- Bitmap Distribution Format
- BDT
- Billing Data Transmitter
- BDT
- Bulk Data Transfer
- BE
- Back End
- BE
- Bill of Exchange
- BEA
- Bureau of Economic Analysis
- BEAV
- Binary Editor And Viewer
- BECAUSE
- BEnchmark of Concurrent Architectures for their Use in =
Scientific=20
Engineering
- BED
- Hanscom Field, Bedford MA
- BEF
- Band Elimination Filter
- BEF
- British Expeditionary Force (see AEF)
- BELLCORE
- BELL COmmunications REsearch
- BEM
- Bug Eyed Monster
- BENELUX
- BElgium, NEtherlands, and LUXembourg
- BER
- Basic Encoding Rules
- BER
- Bit Error Rate
- BERNET
- BErliner RechnerNETz
- BERT
- Bit Error Rate Test
- BEST
- Borland Enhanced Support and Training
- BETRS
- Basic Exchange Telecommunications Radio Service
- BF
- Brought Forward
- BFA
- Bachelor of Fine Arts
- BFD
- Big F***ing Deal
- BFHD
- Big Fat Hairy Deal
- BFR
- Biennial Flight Review
- BGP
- Border Gateway Protocol
- BH
- Black Hole
- BH
- Boot Hill
- BHA
- Butylated HydroxyAnisole
- BHC
- Busy Hour Calls
- BHP
- Brake HorsePower
- BHT
- Butylated HydroxyToluene
- BI
- Backplane Interconnect
- BI
- Bus Interconnect
- BICS
- Building Industry Consulting Services [telephony]
- BID
- Bis In Die (twice a day)
- BIMA
- Berkeley Illinois Maryland Array
- BIND
- Berkeley Internet Name Daemon
- BIOC
- Break Into Other Computers
- BIOS
- Basic Input Output System
- BIRD
- BIlinear Rotation Decoupling
- BIS
- Business Information System
- BISDN
- Broadband Integrated Services Digital Network, =
"B-ISDN"
- BISP
- Business Information System Program
- BISYNC
- Binary Synchronous Communications, "BiSync" (BSC is =
preferred)=20
[IBM]
- BIT
- Binary digIT
- BIT
- Bipolar Integrated Technology Inc
- BITNET
- Because-It's-Time NETwork
- BITS
- Biotechnology Information Toolkit Software
- BIU
- Bus Interface Unit
- BIX
- Byte Information eXchange
- BL
- Bill of Loading
- BLAS
- Basic Linear Algebra Subroutines
- BLAST
- BLocked ASynchronous Transmission
- BLDS
- Busy Line/Don't Answer, "BL/DS"
- BLER
- Block Error Rate
- BLERT
- BLock Error Rate Test
- BLF
- Busy Lamp Field [telephony]
- BLF
- Busy Line Field
- BLM
- Bureau of Land Management
- BLOBS
- Binary Large OBjectS
- BLS
- Bureau of Labor Statistics
- BLS
- Business Listing Service
- BLT
- BLock Transfer
- BLT
- Bacon, Lettuce, and Tomato
- BLV
- Busy Line Verification
- BM
- Basal Metabolism
- BM
- Bowel Movement
- BM
- Breakdown Maintenance
- BMA
- Bank Marketing Association
- BMEWS
- Ballistic Missile Early Warning
- BMG
- Bloomington, IN
- BMI
- Broadcast Music Inc.
- BMO
- Ballistic Missile Office
- BMOC
- Big Man On Campus
- BMP
- Benchmark Plan
- BMR
- Basal Metabolism Rate
- BNC
- Bayonet Navy Connector
- BNC
- Bayonet Neill Concelman (connector) [electronics] (see =
also=20
TNC)
- BNC
- Berkley Nucleonics Corporation
- BNC
- British Naval Connectors
- BNET
- Berkeley NETworking
- BNF
- Bachus-Naur Form
- BNFL
- British Nuclear Fuels Ltd
- BNRCVUUCP
- Batch News ReCeive Via UUCP
- BNS
- Billed Number Screening
- BNSC
- British National Space Centre
- BNU
- Basic Networking Utilities (AT&T's name for =
HoneyDanBer=20
UUCP)
- BO
- Body Odor
- BO
- Branch Office
- BO
- Buyer's Option
- BOC
- Bell Operating Company
- BOD
- Board Of Directors
- BOF
- Birds Of a Feather
- BOM
- Bill Of Materials
- BOQ
- Bachelor Officers' Quarters
- BOR
- Basic Output Report
- BORSCHT
- Battery, Overvoltage, Ringing, Supervision, Coding, Hybrid =
Test
- BOS
- Base Operating System
- BOS
- Boston MA
- BOS
- Business Office Supervisor
- BOSIX
- Biin Open System Interface eXtension
- BOSS
- Billing and Order Support System
- BOT
- Beginning Of Tape
- BP
- Base Pointer
- BP
- Blood Pressure
- BP
- British Petroleum
- BP
- British Pharmacopoeia
- BPI
- Bits Per Inch, Blocks Per Inch, Bytes Per Inch
- BPOC
- Bell Point Of Contact
- BPOE
- Benevolent and Protective Order of Elks
- BPPS
- Basing-Point Pricing System
- BPS
- Bits/Bytes Per Second
- BPSS
- Basic Packet-Switching Service
- BR
- Bills Receivable
- BR
- British Rail
- BRAT
- Business Residence Account Tracking system
- BRC
- Business Reply Card
- BRCS
- Business Residence Custom Service
- BRI
- Basic Rate Interface
- BRIEF
- Basic Reconfigurable Interactive Editing Facility
- BRL
- Ballistics Research Lab
- BRL
- army Ballistic Research Laboratory
- BRM
- Basic Remote Module
- BRS
- Bibliographic Retrieval Service
- BS
- Bachelor of Science
- BS
- Back Space
- BS
- Banded Signaling
- BS
- Bill of Sale
- BS
- Bill of Sale, "B/S"
- BS
- British Standards
- BSA
- Basic Serving Arrangements
- BSA
- Birmingham Small Arms
- BSA
- Boy Scouts of America
- BSBH
- Busy Season Busy Hour
- BSC
- Bachelor of SCience, "BSc"
- BSC
- Binary Synchronous Communication
- BSC
- Binary Synchronous Communications (also sometimes BiSync)=20
[IBM]
- BSC
- Business Service Center
- BSCM
- BiSynchronous Communications Module
- BSD
- Berkeley Software Distribution
- BSE
- Basic Service Element
- BSF
- Bell Shock Force
- BSI
- British Standards Institute
- BSMTP
- Batched SMTP
- BSN
- Bachelor of Science in Nursing
- BSOC
- Bell Systems Operating Company
- BSP
- Bell System Practice
- BSRFS
- Bell System Reference Frequency Standard
- BSS
- Basic Synchronized Subset
- BSS
- Block Started by Symbol (IBM assembly-language)
- BST
- Basic Services Terminal
- BSTJ
- Bell System Technical Journal
- BSW
- Boston Software Works
- BT
- Bus Terminator
- BTAM
- Basic Telecommunications Access Method [IBM]
- BTHU
- British Thermal Unit, "BThU" (BTU, q.v., is preferred)
- BTL
- Backplane Transceiver Logic
- BTL
- Bell Telephone Laboratories
- BTN
- Billing Telephone Number
- BTO
- Bachman Turner Overdrive
- BTOL
- Better Than Open Look
- BTS
- Board Tracking System
- BTU
- British Thermal Unit
- BTW
- By The Way [net jargon]
- BU
- Bushido
- BU
- Business Units
- BURP
- Brewers United for Real Potables
- BUS
- Basic Utility System
- BUT
- Board Under Test
- BV
- Blessed Virgin
- BVA
- Billing Validation Application
- BVC
- Billing Validation Center
- BVY
- Beverly MA
- BW
- Business Wire
- BWC
- BandWidth Compression
- BWI
- Baltimore-Washington International (airport)
- BWI
- British West Indies
- BWM
- Broadcast Warning Message
- BWT
- Broadcast Warning TWX
- BWTS
- BandWidth Test Set
- BX
- Base eXchange (see also PX)
- BYU
- Brigham Young University
- C
- Copper
- C
- programming language, successor to BCPL
- CA
- CAble
- CA
- California
- CA
- Chartered Accountant
- CA
- Chief Accountant
- CA
- Chronological Age
- CA
- Collision Avoidance (as in CSMA/CA (q.v.))
- CAA
- Civil Aviation Authority (U.K.)
- CAB
- Civil Aeronautics Board
- CABS
- Carrier Access Billing System
- CAC
- Calling-card Authorization Center
- CAC
- Carrier Access Code
- CAC
- Circuit Administration Center
- CAC
- Customer Administration Center
- CACM
- Communications of the Association for Computing =
Machinery
- CAD
- Computer Aided Design (sometimes seen as CAD/CAM)
- CAD
- Computer-Aided Dispatch
- CADD
- Computer-Aided Design and Drafting
- CADV
- Combined Alternate Data/Voice
- CAE
- Common Application Environment
- CAE
- Computer-Aided Education
- CAE
- Computer-Aided Engineering
- CAFE
- Corporate Average Fuel Economy
- CAGR
- Compound Annual Growth Rate
- CAI
- Call Assembly Index
- CAI
- Computer Aided Instruction
- CAI
- Computer Application Inc
- CAI
- Computer Assisted Instruction
- CAIS
- Colocated Automatic Intercept System
- CAIS
- Common Apse Interface Specification
- CALRS
- Centralized Automatic Loop Reporting System
- CALS
- Computer-aided Acquisition and Logistics Support
- CAM
- Common Access Method (SCSI)
- CAM
- Computer Aided Management
- CAM
- Computer Aided Manufacturing (sometimes seen as =
CAD/CAM)
- CAM
- Computer-Aided Manufacturing
- CAM
- Content Addressable Memory
- CAMA
- Centralized Automatic Message Accounting
- CAMAC
- Computer Automated Measurement And Control
- CAML
- Categorical Abstract Machine Language
- CAMM
- Computer Assisted Material Management
- CAMP
- Campaign Against Marijuana Planting
- CAMRA
- CAMpaign for Real Ale
- CAN
- Campus Area Network
- CAP
- Civil Air Patrol
- CAP
- Columbia Appletalk Package
- CAP
- Computer Aided Publishing
- CAPP
- Computer Aided Process Planning
- CAPS
- CAPital letterS
- CAPTAIN
- Character And Pattern Telephone Access Information =
Network
- CAR
- Computer Access & Retrieval
- CAR
- Contents of the Address part of the Register
- CAROT
- Centralized Automatic Reporting On Trunks
- CART
- Championship Auto Racing Teams
- CAS
- Chemical Abstracts Service
- CAS
- Circuit Associated Signaling
- CAS
- Communicating Application Specification
- CAS
- Computerized Autodial System
- CASE
- Common Application Service Element
- CASE
- Computer Aided Software Engineering
- CASSI
- Chemical Abstracts Service Source Index
- CASSIS
- Classification and Search Support Information System
- CAT
- Computer Assisted Typesetter
- CAT
- Computer-Aided Tomography
- CAT
- Craft Access Terminal
- CAT
- Customer Acceptance Test
- CAT
- conCATenate
- CATIS
- Common Applications and Tools Integration Services
- CATLAS
- Centralized Automatic Trouble Locating and Analysis =
System
- CATV
- Community Antenna TeleVision
- CAU
- Connection Arrangement Unit
- CAV
- Constant Angular Velocity
- CAVU
- Ceiling And Visibility Unlimited
- CB
- Citizens Band radio
- CBC
- Canadian Broadcasting Corporation
- CBD
- Cash Before Delivery
- CBD
- Central Business District
- CBD
- Commerce Business Daily
- CBDS
- Connectionless Broadband Data Service
- CBEMA
- Computer & Business Equipment Manufacturers =
Association
- CBI
- Computer Based Instruction
- CBR
- Chemical, Biological, Radiological warfare
- CBS
- Columbia Broadcasting System
- CBS
- CrossBar Switching
- CBW
- Chemical and Biological Warfare
- CBX
- Computerized Branch eXchange
- CC
- Carbon Copy
- CC
- Center Conductor
- CC
- Central Control
- CC
- Common Control
- CC
- Cost Center
- CC
- Country Code
- CC
- C Compiler
- CC
- Cluster Controller
- CCA
- Computer Corporation of America [Corporate name]
- CCAFS
- Cape Canaveral Air Force Station
- CCC
- Canadian Committee on Cataloging
- CCC
- Central Control Complex
- CCC
- Ceramic Chip Carriers
- CCC
- Civil(ian) Conservation Corps
- CCC
- Command, Control, and Communications (sometimes C^3)
- CCC
- Computer Control Center
- CCC
- Concourse Computer Center [MIT]
- CCCCM
- CCC CounterMeasures (sometimes C^3CM)
- CCCI
- Command, Control, Communications, and Intelligence
- CCD
- Charge Coupled Device (see CID)
- CCD
- Computer-Controlled Display
- CCDS
- Centers for the Commercial Development of Space
- CCH
- Connections per Circuit per Hour
- CCI
- Computer Carrier Interrupt
- CCI
- Computer Consoles, Incorporated
- CCIM
- Certified Commercial Investment Member
- CCIP
- Continuously Computed Impact Point
- CCIR
- Comite' Consultatif International des Radio =
Communications
- CCIS
- Common Channel Interoffice Signaling [telephony]
- CCITT
- Comite' Consultatif International Telegraphique et=20
Telephonique
- CCITT
- International Consultative Committee for Telegraphy and=20
Telephony
- CCL
- Console Command Language
- CCNC
- Common Channel Network Controller
- CCNC
- Computer/Communications Network Center
- CCR
- Commitment, Concurrency, and Recovery
- CCR
- Covenants, Conditions, and Restrictions
- CCR
- Creedence Clearwater Revival
- CCR
- Customer-Controlled Reconfiguration
- CCRP
- Continuously Computed Release Point
- CCS
- Common Channel Signaling
- CCS
- Common Command Set (SCSI)
- CCS
- Hundred (C) Call Seconds
- CCSA
- Common Control Switching Arrangement [telephony]
- CCT
- Central Control Terminal
- CCTA
- Central Computer and Telecommunications Agency
- CCTAC
- Computer Communications Trouble Analysis Center
- CCTV
- Closed Circuit TeleVision
- CCU
- COLT Computer Unit
- CCV
- Calling Card Validation
- CCW
- Counter ClockWise
- CD
- Carrier Detect (properly DCD (q.v.))
- CD
- Certificate of Deposit
- CD
- Circular Dichroism
- CD
- Civil Defense
- CD
- Collision Detection (as in CSMA/CD (q.v.))
- CD
- Compact Disk
- CDA
- Call Data Accumulator
- CDA
- Coin Detection and Announcement
- CDA
- Compound Documents Architecture
- CDAR
- Customer Dialed Account Recording
- CDB
- Command Descriptor Block
- CDB
- Customer Distributed Buglist
- CDC
- Centers for Disease Control
- CDC
- Control Data Corporation, inc. [Corporate name]
- CDCF
- Cumulative Discounted Cash Flow
- CDEV
- Control panel DEVice
- CDF
- Combined Distributing Frame
- CDF
- Context-Dependent File
- CDI
- Circle Digit Identification
- CDI
- Course Deviation Indicator
- CDIAC
- Carbon Dioxide Information Analysis Center
- CDO
- Community Dial Office
- CDP
- Career Development Program
- CDPR
- Customer Dial Pulse Receiver
- CDR
- Call Dial Rerouting
- CDR
- CommanDeR
- CDR
- Contents of the Decrement part of the Register
- CDR
- Critical Design Review
- CDROM
- Compact Disk Read Only Memory, "CD-ROM"
- CDS
- Craft Dispatch System
- CDSF
- Commercially Developed Space Facility
- CDT
- Call Data Transmitter
- CDT
- Central Daylight Time
- CDU
- Control Display Unit
- CE
- Chemical Engineer
- CE
- Civil Engineer
- CE
- Common Era (substitute for AD)
- CE
- Corps of Engineers
- CE
- Customer Engineer
- CEA
- Commissariat a l'Energie Atomique, France
- CEA
- Council of Economic Advisors
- CEA
- County Education Authority
- CEBIT
- welt-CEntrum Buero Information Telekommunikation
- CEC
- Commission of the European Communities
- CED
- Committee for Economic Development
- CEERT
- Coalition for Energy Efficiency and Renewable =
Technologies
- CEF
- Cable Entrance Facility
- CEI
- Comparably Efficient Interconnection
- CELSS
- Controlled Ecological Life Support System [Space]
- CEN
- Centre d'Etudes Nucleaires
- CENS
- Centre d'Etudes Nucleaires de Seclay
- CENTO
- CENtral Treaty Organization
- CEO
- Chief Executive Officer
- CERMET
- Ceramic Metal Element
- CERN
- organisation (formerly Conseil) Europeenne pour la =
Recherche=20
Nucleaires
- CERT
- Computer Emergency Response Team
- CET
- Central European Time
- CEV
- Controlled Environment Vault
- CEVI
- Common Equipment Voltage Indicator
- CF
- Carry Forward
- CF
- Coin First payphone [telephony]
- CFA
- Center For Astrophysics
- CFB
- Color Frame Buffer
- CFC
- Chloro-FluoroCarbon [chemical]
- CFC
- Combined Federal Campaign
- CFCA
- Communications Fraud Control Association
- CFD
- Computational Fluid Dynamics
- CFF
- Columbus Free Flyer
- CFHT
- Canada-France-Hawaii Telescope
- CFI
- Certificated Flight Instructor
- CFI
- Cost, Freight, and Insurance
- CFL
- Canadian Football League
- CFO
- Chief Financial Officer
- CFP
- Call For Papers
- CFR
- Code of Federal Regulations
- CG
- Coast Guard
- CG
- Commanding General
- CGA
- Color Graphics Adapter
- CGCT
- Compagnie Generale de Constructions Telephoniques
- CGE
- Cincinnati Gas & Electric, "CG&E"
- CGE
- Compagnie Generale d'Electricite
- CGI
- Computer Graphics Interface
- CGIAR
- Consultative Group on International Agricultural =
Research
- CGM
- Computer Graphics Metafile
- CGMIF
- Computer Graphics Metafile Interchange Format
- CGN
- Concentrator Group Number
- CGS
- Centimeter-Gram-Second
- CGX
- Chicago (Meigs) IL
- CH
- Cardboard Heroes
- CH
- ClearingHouse
- CH
- CourtHouse
- CH
- Customs House
- CHA
- Champions
- CHAP
- CHAnnel Processor
- CHARA
- Center for High Angular Resolution Astronomy
- CHARGEN
- CHARacter GENerator
- CHI
- Chill: Adventures into the Unknown
- CHOTS
- Corporate Headquarters Office Technology System
- CHP
- California Highway Patrol
- CI
- Configuration Interaction
- CI
- Cubic Inches
- CIA
- Central Intelligence Agency [US Government]
- CIAC
- Computer Incident Advisory Capability
- CIB
- Console Interface Board
- CIC
- Carrier Identification Code
- CIC
- Coordination and Information Center [CSNet]
- CICA
- Competition in Contracting Act
- CICS
- Customer Information Control System [IBM]
- CICSVS
- Customer Information Control System / Virtual Storage,=20
"CICS/VS"
- CID
- Central Institute for the Deaf
- CID
- Charge Injection Device (see CCD)
- CID
- Computer Integrated Design
- CIDEP
- Chemically Induced Dynamic Electron Polarization
- CIDIN
- Common Icao Data Interchange Network
- CIDNP
- Chemically Induced Dynamic Nuclear Polarization
- CIF
- Caltech Intermediate Form
- CIF
- Cost, Insurance and Freight
- CII
- Call Identity Index
- CIM
- Computer Integrated Manufacturing
- CIMA
- Construction Industry Manufacture's Association
- CIO
- Chief Information Officer
- CIP
- Chief Income Producer
- CIP
- Computer-Investitions-Programm
- CIRCA
- Center for Instructional and Research Computing =
Activities
- CIRRIS
- Cryogenic InfraRed Radiance Instrument for Shuttle
- CIS
- Chief Income Spender
- CIS
- Commonwealth of Independent States
- CIS
- Compuserve Information S?
- CIS
- Customized Intercept Service
- CISC
- Complex Instruction Set Computer
- CIT
- California Institute of Technology
- CIT
- Case Institute of Technology (part of CWRU, Cleveland, =
OH)
- CIT
- Circumstellar Imaging Telescope [Space]
- CIT
- Computer Integrated Telephony
- CIU
- Computer Interface Unit
- CL
- Connection-Less mode
- CLASP
- Comprehensive Logistics Automated Support Program
- CLASS
- Centralized Local Area Selective Signaling
- CLASS
- Custom Local Area Signaling Service
- CLDN
- Calling Line Directory Number
- CLEF
- Certified Licensed Evaluation Facility
- CLEI
- Common-Language Equipment Identification
- CLI
- Calling Line Ident
- CLI
- Command Line Interpreter
- CLID
- Calling Line IDentification
- CLLI
- Common-Language Location Identification
- CLNP
- ConnectionLess Network Protocol
- CLOS
- Common Lisp Object System
- CLR
- Combined Line and Recording
- CLRC
- Circuit Layout Record Card
- CLS
- connectionless server
- CLTP
- Connectionless Transport Protocol
- CLU
- Chartered Life Underwriter
- CLUT
- Color LookUp Table
- CLV
- Constant Linear Velocity
- CM
- Command Module (Apollo spacecraft)
- CM
- Computer Modern
- CM
- Congregation of the Mission
- CM
- Corrective Maintenance
- CMA
- Cash Management Account
- CMAC
- Centralized Maintenance and Administration Center
- CMC
- Communication Machinery Corporation
- CMC
- Construction Maintenance Center
- CMC
- Corporate Management Commitee
- CMCC
- Central Mission Control Centre (ESA)
- CMD
- Centralized Message Distribution
- CMDF
- Combined Main Distributing Frame
- CMDS
- Centralized Message Data System
- CMH
- Port Columbus OH
- CMI
- Champaign-Urbana IL
- CMIP
- Common Management Information Protocol
- CMIS
- Common Management Information Service
- CMISE
- Common Management Information Service Element
- CML
- Current Model Logic
- CMMU
- Cache/Memory Management Unit
- CMOS
- Complementary-symmetry Metal-Oxide Semiconductor
- CMOT
- Common Management Information Services and Protocol over=20
TCP/IP
- CMRR
- Common Mode Rejection Ratio
- CMS
- Call Management System
- CMS
- Circuit Maintenance System
- CMS
- Communications Management Subsystem
- CMS
- Conversational Monitoring System
- CMSGT
- Chief Master Sergeant, "CMSgt"
- CMT
- Cellular Mobile Telephone
- CMU
- COLT Measurement Unit
- CMU
- Carnegie-Mellon University
- CMW
- Compartmented Mode Workstation
- CMYK
- Cyan, Magenta, Yellow, blacK
- CN
- Canadian National (railroad) [Corporate name]
- CN
- Change Notice
- CNA
- Communications Network Application
- CNA
- Customer Name / Address, "CN/A" [telephony]
- CNA
- Customer Name and Address
- CNAB
- Customer Name/Address Bureau
- CNC
- Computer Numerical Control
- CNCC
- Customer Network Control Center
- CNDO
- Complete Neglect of Differential Overlap
- CNES
- Centre National d'Etude Spatiales
- CNI
- Common Network Interface
- CNM
- Communications Network Management
- CNMA
- Communications Network for Manufacturing Applications
- CNMS
- Cylink Network Management System
- CNN
- Cable News Network
- CNO
- Carbon-Nitrogen-Oxygen
- CNO
- Chief of Naval Operations
- CNR
- Canadian National Railways
- CNR
- Carrier to Noise Ratio
- CNR
- Consiglio Nazionale delle Ricerche, Italy
- CNRCVUUCP
- Compressed News ReCeive Via UUCP
- CNS
- Central Nervous System
- CNS
- Complimentary Network Service
- CNSR
- Comet Nucleus Sample Return
- CO
- Cash Order
- CO
- Central Office [telephony]
- CO
- Colorado
- CO
- Commanding Officer
- CO
- Conscientious Objector
- CO
- in Care Of, "C/O"
- COAM
- Customer Owned And Maintained
- COB
- Close Of Business
- COBE
- COsmic Background Explorer
- COBOL
- COmmon Business Oriented Language
- COC
- Call of Cthulhu
- COC
- Circuit Order Control
- COCOM
- Coordinating Comittee for Export to Comminist Area
- COCOT
- Customer-Owned Coin-Operated Telephone [telephony]
- COD
- Collect On Delivery; Cash On Delivery
- CODASYL
- Conference On DAta SYstems Languages
- CODCF
- Central Office Data Connecting Facility
- CODEC
- COder-DECoder
- COE
- Center Of Excellence
- COE
- Central Office Equipment
- COEES
- COE Engineering System
- COER
- Central Office Equipment Report
- COFF
- Common Object File Format
- COLA
- Cost-Of-Living Allowance
- COLOC
- COrrelation spectroscopy for LOng-range Couplings
- COLT
- Central Office Line Tester
- COM
- Commercial (pilot certificate)
- COM
- Computer Output Microfilm
- COMAS
- Central Office Maintenance and Administration System
- COMDEX
- COMputer Dealer's Exposition
- COMM
- Communications
- COMPACT
- COMmercial Product ACquisition Team
- COMPTEL
- COMPton TELescope (on GRO)
- COMS
- Complementary Metal Oxide Semiconductor
- COMSAT
- COMmunications SATellite [Space]
- COMSAT
- Communications Satellite Corp
- CONN
- CONNector
- CONS
- Connection-Oriented Networking Session
- CONTAC
- Central Office NeTwork ACcess
- CONUS
- CONtinental United States
- COO
- Chief Operating Officer
- COP
- Character-Oriented Protocol
- COPS
- Computer Oracle and Password System
- COQ
- Cost Of Quality
- CORE
- COntrolled Requirement Expression
- CORN
- COmputer Resource Nucleus
- CORNET
- CORperate NETwork
- COS
- Central Office Switch
- COS
- Corporation for Open Systems
- COSINE
- Cooperation for Open Systems Interconnection Networking in =
Europe
- COSMIC
- COmmon Systems Main InterConnection frame system
- COSMIC
- COmputer Software Management and Information Center
- COSMOS
- COmputer System for Mainframe OperationS
- COSTAR
- Corrective Optics Space Telescope Axial Replacement
- COSY
- COrrelation SpectroscopY
- COT
- Central Office Terminal
- COTS
- Connection-Oriented Transport (layer) Service
- CP
- Canadian Pacific
- CP
- Canadian Press
- CP
- Chemically Pure
- CP
- CoPy
- CP
- Command Post
- CP
- Command Processor
- CP
- Control Program
- CP
- Cross Polarization
- CPA
- Certified Public Accountant
- CPA
- Communications & Public Affairs, "C&PA"
- CPC
- Cellular Phone Company
- CPC
- Circuit Provisioning Center
- CPD
- Central Pulse Distributor
- CPE
- Customer Premises Equipment
- CPE
- Customer-Provided Equipment
- CPFF
- Cost Plus Fixed Fee
- CPH
- Cost Per Hour
- CPI
- Characters Per Inch
- CPI
- Common Programming Interface
- CPI
- Computer Private branch exchange Interface
- CPIO
- CoPy In/Out
- CPL
- Combined Programming Language
- CPM
- Control Program for Microcomputers (sometimes CP/M)
- CPM
- Cost Per Minute
- CPM
- Critical Path Method
- CPMAS
- Cross Polarization/Magic Angle Spinning, "CP/MAS"
- CPMG
- Carr-Purcell-Meiboom-Gill
- CPMP
- Carrier Performance Measurement Plan
- CPO
- Chief Petty Officer
- CPO
- Chief Post Office
- CPO
- Customer Premises Equipment
- CPP
- Cable Patch Panel
- CPR
- Canadian Pacific Railway
- CPS
- Characters Per Second
- CPSR
- Computer Professionals for Social Responsibility
- CPT
- CaPTain
- CPU
- Central Processing Unit
- CPW
- Certified Public Weigher
- CQ
- Charge of Quarters, Call to Quarter
- CQ
- Commercial Quality
- CR
- Carriage Return (ASCII 15 octal)
- CRAF
- Comet Rendezvous/Asteroid Flyby [Space]
- CRAM
- Card Random Access Memory
- CRAS
- Cable Repair Administrative System
- CRB
- Certified Residential Broker
- CRC
- Camera Ready Copy
- CRC
- Chemical Rubber Company
- CRC
- Civil Rights Commission
- CRC
- Customer Record Center
- CRC
- Cyclic Redundancy Check
- CRC
- Cyclical Redundancy Character
- CRD
- Customer Required Date
- CREG
- Concentrated Range Extension with Gain
- CREN
- Corporation for Research and Educational Networking
- CRFC
- Customer Return For Credit
- CRFMP
- Cable Repair Force Management Plan
- CRI
- Cray Research, Inc.
- CRIN
- Centre de Recherche en Informatique de Nancy
- CRIS
- Customer Record Information System
- CRISC
- Complex-Reduced Instruction Set Computer
- CRISP
- Complex-Reduced Instruction Set Processor
- CRISP
- Cross-Relaxation Intensity Sequence Pattern
- CRL
- Certificate Revocation List
- CRLF
- Carriage Return/Line Feed
- CRONIC
- Colorado Rudimentary Operating Nucleus for Intelligent =
Controllers=20
(HSC OS)
- CROTCH
- Computerized Routine for Observing and Testing the Channel =
Hardware
- CRRES
- Combined Release / Radiation Effects Satellite
- CRS
- Centralized Results System
- CRSAB
- Centralized Repair Service Answering Bureau
- CRT
- Cathode Ray Tube (also generic reference to a =
terminal)
- CRTC
- Canadian Radio-television and Telecommunications =
Commission
- CS
- Chivalry & Sorcery, "C&S"
- CS
- Civil Servant
- CS
- Code Segment
- CS
- Computer Science; Computing Science
- CS
- County Seat
- CS
- Customer Service
- CSA
- Canadian Standards Association
- CSA
- Carrier Serving Area
- CSA
- Client Service Agent
- CSA
- Confederate States of America
- CSA
- Customer Service Administration
- CSAB
- Computing Sciences Accreditation Board
- CSACC
- Customer Service Administration Control Center
- CSACS
- Centralized Status, Alarm and Control System
- CSAR
- Centralized System for Analysis Reporting
- CSC
- Cell Site Controller
- CSC
- Computer Sciences Corporation
- CSCM
- Chemical Shift Correlation Map
- CSD
- Customer Service Division
- CSDC
- Circuit Switched Digital Capability
- CSE
- Common Subexpression Elimination
- CSF
- Critical Success Factor
- CSI
- Commercial Systems Integration
- CSIRO
- Commonwealth Scientific and Industrial Research =
Organization
- CSIS
- Canadian Security and Intelligence Service
- CSL
- Coin Supervising Link
- CSM
- Command Sergeant Major
- CSM
- Command and Service Module (Apollo spacecraft)
- CSMA
- Carrier Sense Multiple Access
- CSMACA
- Carrier Sense Multiple Access with Collision Avoidance,=20
"CSMA/CA"
- CSMACD
- Carrier Sense Multiple Access with Collision Detection,=20
"CSMA/CD"
- CSN
- Computer Systems News (magazine)
- CSNET
- Computer Science NETwork
- CSO
- Central Services Organization
- CSO
- Computing Services Office (UIUC)
- CSOC
- Consolidated Space Operations Center (at Colorado =
Springs)
- CSP
- Control Switching Point
- CSPAN
- Cable-Satellite Public Affairs Network, "C-SPAN"
- CSR
- Control and Status Register
- CSRG
- Computer Systems Research Group
- CSRI
- Computer Systems Research Institute (U Toronto)
- CSRS
- Civil Service Retirement System
- CSS
- Computer Sub-System
- CSS
- Customer Switching System
- CST
- Central Standard Time
- CSTA
- Computer Supported Telecommunications Applications
- CSTC
- Consolidated Satellite Test Center (USAF)
- CSU
- Channel Service Unit
- CT
- Central Time
- CT
- Charge Transfer
- CT
- Communications & Tracking, "C&T"
- CT
- Computed Tomography
- CT
- Connecticut
- CTC
- Canadian Transport Commission
- CTC
- Central Test Center
- CTC
- Centralized Traffic Control [railroad]
- CTC
- Chu-Itoh Techno-Science Co.
- CTD
- Computing and Telecommunications Division
- CTERM
- Command TERMinal (DECNET)
- CTIO
- Cerro Tololo Inter-american Observatory
- CTM
- Contac Trunk Module
- CTMS
- Carrier Transmission Measuring System
- CTNE
- Compania Telefonica Nacional de Espana
- CTO
- Call Transfer Outside
- CTRL
- Control
- CTS
- Carpal Tunnel Syndrome
- CTS
- Cartridge Tape Subsystem (Exabyte)
- CTS
- Clear To Send
- CTS
- Compatible Timesharing System
- CTSS
- {Compatible,Chameleon,Cray,Cyber} Time-Sharing System
- CTT
- Cartridge Tape Transport
- CTTC
- Cartridge Tape Transport Controller
- CTTN
- Cable Trunk Ticket Number
- CTV
- Canadian TeleVision network
- CU
- Close-Up
- CU
- Control Unit
- CU
- Customer Unit
- CUA
- Common User Access
- CUCRIT
- Capital Utilization CRITeria
- CUL
- See You Later [net jargon]
- CUNBATCH
- Compressed news UNBATCH
- CUTK
- Common Update/EQuipment system, "CU/TK"
- CV
- Constant Velocity
- CV
- Curriculum Vitae
- CVCC
- Controlled Vortex Combustion Chamber
- CVD
- Chemical Vapor Deposition
- CVR
- Compass Voice Response
- CVT
- Continuous Variable Transmission
- CW
- Car Wars
- CW
- Chemical Warfare
- CW
- Child Welfare
- CW
- Churchwarden
- CW
- Continuous Wave
- CWC
- City-Wide Centrex
- CWI
- Centrum voor Wiskunde en Informatica (Centre for =
Mathematics and=20
Computer Science)
- CWO
- Cash With Order
- CWO
- Chief Warrant Officer
- CWRU
- Case Western Reserve University
- CXI
- Common X-windows Interface
- CY
- Calendar Year
- CYO
- Catholic Youth Organization
- CZ
- Canal Zone
- CZ
- Control Zone
- D
- Depth
- DA
- Days after Acceptance
- DA
- Department of Agriculture
- DA
- Deposit Account
- DA
- Desk Accessory (Mac)
- DA
- Digital to Analog converter, "D?A"
- DA
- Directory Assistance (/C = computerized, /M = =
Microfilm)
- DA
- District Attorney
- DA
- Don't Answer
- DAC
- Design Automation Conference
- DAC
- Digital to Analog Converter
- DACCS
- Digital Access Cross Connect System [telephony]
- DACS
- Digital Access Cross-connect System [telephony]
- DACS
- Directory Assistance Charging System
- DAD
- Draft ADdendum
- DAIS
- Distributed Automatic Intercept System
- DAMQAM
- Dynamically Adaptive Multicarrier Quadrature Amplitude=20
Modulation
- DAP
- Data Access Protocol (DECNET)
- DAP
- Division Advisory Panel [of NSF (q.v.) DNCRI (q.v.)]
- DAR
- Daughters of the American Revolution
- DARC
- Division Alarm Recording Center
- DARPA
- Defense Advanced Research Projects Agency
- DARU
- Distributed automatic intercept system Audio Response =
Unit
- DAS
- Directory Assistance System
- DAS
- Distributor And Scanner
- DAS
- Dual Attach Station
- DASD
- Direct Access Storage Device
- DASWDT
- Distributor And Scanner-Watch Dog Timer, "DAS-WDT"
- DAT
- Digital Audio Tape
- DATA
- Defense Air Transport Administration
- DAV
- Data Above Voice
- DAV
- Disabled American Veterans
- DAY
- Dayton OH
- DB
- DataBase
- DB
- DeciBels, "db"
- DB
- Dial Box
- DBA
- Data Base Administrator
- DBA
- Doing Business As
- DBAC
- Data Base Administration Center
- DBAS
- Data Base Administration System
- DBF
- DBase Format
- DBM
- DataBase Manager
- DBME
- DataBase Managment Environment
- DBMS
- DataBase Management System (rdbms for Relational)
- DBRAD
- Data Base Relational Application Directory
- DBS
- Duplex Bus Selector
- DC
- Data Cartridge
- DC
- Direct Current, "dc" (see also AC)
- DC
- District of Columbia
- DCA
- Defense Communications Agency
- DCA
- Distributed Communication Architecture
- DCA
- Document Content Architecture
- DCA
- Washington (National) DC
- DCC
- Data Country Code
- DCC
- Descriptive Cataloging Committee
- DCC
- DiCyclohexylCarbodiimide
- DCC
- Digital Compact Cassette
- DCCO
- Defense Commercial Communications Office
- DCCS
- DisContiguous Shared Segments
- DCD
- Data Carrier Detect (sometimes CD (q.v.))
- DCE
- Data Circuit-terminating Equipment
- DCE
- Data Communications Equipment
- DCE
- Distributed Computing Environment
- DCH
- D Channel Handler
- DCI
- Desktop Color Imaging
- DCL
- DEC Control Language
- DCL
- Data Control Language
- DCL
- Digital Command Language
- DCLU
- Digital Carrier Line Uint
- DCM
- Digital Carrier Module
- DCMS
- Distributed Call Measurement System
- DCMU
- Digital Concentrator Measurement Unit
- DCNA
- Data Communication Network Architecture
- DCO
- Document Change Order
- DCP
- Distributed Communications Processor
- DCP
- Duplex Central Processor
- DCPR
- Detailed Contuing Property Record (PICS/DCPR)
- DCPSK
- Differential Coherent Phase-Shift Keying
- DCS
- Digital Crosconnect System
- DCS
- Distribution Control System
- DCT
- Digital Carrier Trunk
- DCTN
- Defense Commercial Telecommunications Network
- DCTS
- Dimension Custom Telephone Service
- DD
- Daredevils
- DD
- Data Dictionary
- DD
- Days after Date
- DD
- Demand Draft
- DD
- Dishonorable Discharge
- DD
- Disk Drive
- DD
- Doctor of Divinity
- DD
- Double Density
- DD
- Dungeons & Dragons, "D&D"
- DDA
- Digital Differential Analyzer
- DDA
- Domain Defined Attribute
- DDB
- Device Dependent Bitmap
- DDC
- Digital Data Converter
- DDC
- Direct Department Calling
- DDCMP
- Digital Data Communication Message Protocol
- DDCU
- DC-to-DC Converter Unit
- DDD
- Direct Distance Dialing [Telephony; principally US, =
elsewhere=20
STD]
- DDE
- Dynamic Data Exchange
- DDJ
- Dr. Dobbs Journal
- DDK
- Driver Development Kit (from MS)
- DDL
- Data Definition Language
- DDL
- Document Description Language
- DDN
- Defense Data Network
- DDP
- Datagram Delivery Protocol
- DDP
- Distributed Data Processing
- DDPEX
- Device Dependent PEX
- DDQ
- DichloroDicyanobenzoQuinone
- DDS
- Dataphone Digital Service [AT&T]
- DDS
- Digital Data Service
- DDS
- Digital Data Storage (Sony and HP's DAT format)
- DDS
- Digital Data System
- DDS
- Digital Dataphone Service
- DDS
- Direct Digital Service
- DDS
- Doctor of Dental Surgery; Doctor of Dental Science
- DDS
- Document Distribution Services
- DDS
- Dataphone Digital service carrier offering 2.4 - 56 =
kb/s
- DDT
- DichloroDiphenylTrichloroethane
- DDV
- DatenDirektVerbindung
- DDX
- Digital Data eXchange, Device Dependent X (windows)
- DDX
- Distributed Data eXchange
- DE
- Delaware
- DE
- Disk Enclosure
- DEA
- Data Encryption Algorithm
- DEA
- Drug Enforcement Agency
- DEAR
- Department of Energy Acquisition Regulation
- DEBNA
- Digital Ethernet BI Network Adapter
- DEC
- Digital Equipment Corporation [Corporate name]
- DECNET
- Digital Equipment Corporation NETwork
- DECUS
- Digital Equipment Computer Users Society
- DELNI
- Digital Ethernet Local Network Interconnect
- DELQA
- Digital Ethernet Lowpower Q-bus network Adapter
- DELUA
- Digital Ethernet Lowpower Unibus network Adapter
- DEMPR
- Digital Ethernet Multi-Port Repeater
- DEPCA
- Digital Ethernet Personal Computer-bus Adapter
- DEPT
- Distortionless Enhancement by Polarization Transfer
- DEQNA
- Digital Ethernet Q-bus Network Adapter
- DEREP
- Digital Ethernet REPeater
- DERP
- Defective Equipment Replacement Program
- DES
- Data Encryption Standard
- DESPR
- Digital Ethernet Single Port Repeater
- DESTA
- Digital Ethernet thin-wire STation Adapter
- DEUNA
- Digital Ethernet Unibus Network Adapter
- DEW
- Distant Early Warning (as in DEW Line)
- DEXEC
- Diagnostic EXEc software
- DF
- Damage Free
- DF
- Direction Finding
- DF
- Direction Finding, "D/F"
- DFC
- Distinguished Flying Cross
- DFD
- Data Flow Diagram
- DFE
- Data Flow Editor
- DFG
- Deutsche ForschungsGemeinschaft
- DFI
- Digital Facility Interface
- DFM
- Distinguished Flying Medal
- DFMS
- Digital Facility Management System
- DFN
- Deutsches ForschungsNetz
- DFRF
- Dryden Flight Research Facility (now ADFRF)
- DFS
- Depth-First Search
- DFS
- Distributed File System
- DFT
- Discrete Fourier Transform
- DFW
- Dallas-Ft.Worth (regional airport)
- DG
- Data General [Corporate name]
- DG
- Dei Gratia (by the grace of God)
- DG
- Directional Gyro
- DG
- Director General
- DGA
- Direct Graphics Access
- DGP
- Dissimilar Gateway Protocol
- DGSC
- Defense General Supply Center
- DHHS
- Department of Health and Human Services
- DHSS
- Department of Health and Social Security (British)
- DHSS
- british Department of Health and Social Security
- DIA
- Defence Intelligence Agency
- DIA
- Display Industry Association
- DIA
- Document Interchange Architecture
- DIAD
- (magnetic) Drum Information Assembler / Dispatcher
- DIAL
- Direct Information Access Line
- DIAS
- Defense Automatic Integrated System
- DIB
- Device Independent Bitmap
- DIB
- Directory Information Bases
- DIBAL
- DiIsoButylALuminum hydride
- DIC
- Digital Interface Controller
- DID
- Direct Inward Dialing [telephony]
- DIF
- Digital Interface Frame
- DIF
- Document Interchange Format
- DIFMOS
- Double Injection Floating Gate MOS
- DIL
- Dual InLine
- DILOG
- DIstributed LOGic
- DIM
- Data In the Middle
- DIMS
- Document Image Management System
- DIN
- Deutsche Industrie Normenausschuss
- DIN
- Deutsches Institut fur Normung
- DINK
- Double Income, No Kids
- DIP
- Dual Inline Package
- DIR
- Deliverly & Installation Request
- DIRE
- Dire Is Really Emacs
- DIRT
- Design In Real-Time
- DIS
- Draft International Standard (ISO)
- DISA
- Direct Inward System Access
- DISCO
- DIfferences and Sums within COsy
- DISOSS
- DIStributed Office Support System
- DIU
- Digital Interface Unit
- DIV
- Division
- DIX
- DEC, Intel, Xerox (Ethernet hardware levels)
- DIY
- Do It Yourself
- DJ
- Disc Jockey
- DLA
- Defense Logistics Agency
- DLC
- Data Link Control
- DLC
- Digital Loop Carrier
- DLC
- Driver's License Compact (Uniform interstate =
treatment)
- DLCU
- Digital Line Carrier Unit
- DLE
- Data Link Escape
- DLG
- Digital Line Graph
- DLI
- Data Link Interface
- DLL
- Dial Long Lines
- DLL
- Dynamic Link Library
- DLO
- Dead Letter Office
- DLS
- Data Link Control
- DLS
- Digital Link Service
- DLTU
- Digital Line/Trunk Unit
- DLUPG
- Digital Line Unit-Pair Gain, "DLU-PG"
- DM
- Delta Modulation
- DM
- Dialog Manager
- DM
- District Manager
- DM
- Dungeon Master
- DMA
- Direct Memory Access
- DMD
- Directory Management Domain
- DMD
- Doctor of Dental Medicine
- DME
- DiMethoxyEthane
- DME
- Distance Measuring Equipment
- DME
- Distributed Management Environment
- DMF
- DiMethylFormamide
- DMI
- Digital Multiplexed Interface
- DML
- Data Manipulation Language
- DML
- Data Manipulation Logic
- DMOS
- Diffusion Metal Oxide Semiconductor (see MOS)
- DMS
- Data Management System
- DMS
- Digital Multiplexed System
- DMS
- Diskless Management Services
- DMSP
- Defense Meteorological Satellite Program
- DMU
- Data Manipulation Unit
- DMV
- Department of Motor Vehicles
- DMZ
- DeMilitarized Zone
- DN
- Directory Number
- DNA
- DeoxyriboNucleic Acid
- DNA
- Digital Network Architecture [DEC]
- DNC
- Direct Numerical Control
- DNC
- Dynamic Network Controller
- DNCRI
- [NSF (q.v.)] Division of Networking and Communications =
Research=20
and Infrastructure
- DNHR
- Dynamic NonHierarchical Routing
- DNI
- DECnet Network Interface
- DNIC
- Data Network Identification Code [telephony]
- DNL
- Director of Naval Laboratories
- DNP
- Dynamic Nuclear Polarization
- DNR
- Dialed Number Recorder [telephony]
- DNS
- Domain Name System
- DNX
- Dynamic Network X-connect
- DOA
- Dead On Arrival
- DOB
- Date Of Birth
- DOC
- Dynamic Overload Control
- DOCS
- Display Operator Console System
- DOD
- Department Of Defense [U.S. Government]
- DOD
- Department of Defense, "DoD"
- DOE
- Department Of Energy [U.S. Government]
- DOE
- Depends On Experience
- DOHC
- Dual OverHead Camshaft
- DOJ
- Department Of Justice [U.S. Government]
- DOM
- Data On Master group
- DOMAIN
- Distributed Operating Multi Access Interactive Network=20
(Apollo)
- DORE
- Dynamic Object Rendering Environment
- DOS
- Disk Operating System
- DOT
- Department Of Transportation [U.S. Government]
- DOTE
- Director, Operational Test and Evaluation, "DOT&E"
- DOTS
- Digital Office Timing Supply
- DOV
- Data Over Voice [telephony]
- DOW
- Day Of Week
- DOXYL
- Dimethyl-OXazolidine-oxYL
- DP
- Data Processing
- DP
- Demarcation Point
- DP
- Dial Pulse [telephony]
- DP
- Displaced Persons (expelled from native land)
- DP
- Display Postscript
- DP
- Double Play
- DP
- Draft Proposal
- DPA
- Delegation of Procurement Authority
- DPAC
- Dedicated Plant Assignment Center
- DPANS
- Draft Proposed American National Standard
- DPC
- Destination Point Code
- DPE
- Data Path Extender
- DPI
- Dots Per Inch
- DPM
- Defect Per Million
- DPM
- Digital Panel Meter
- DPM
- Directional Policy Matrix
- DPMI
- DOS Protected Mode Interface
- DPNPH
- Data Packet Network-Packet Handler, "DPN-PH"
- DPP
- Discounted Payback Period
- DPPH
- DiPhenylPicrylHydrazyl
- DPS
- Display PostScript
- DPSK
- Differential Phased-Shift Keying
- DQ
- Dairy Queen
- DQ
- Dragon Quest
- DQC
- Double-Quantum Coherence
- DQDB
- Distributed Queue Dual Bus a reservation-strategy MAN 150 =
Mb/s
- DQF
- Double-Quantum Filter
- DQL
- Database Query Language
- DR
- Data Ready
- DR
- Data Receive
- DR
- Dead Reckoning
- DR
- Dining Room
- DRAM
- Dynamic Random Access Memory (as opposed to static =
RAM)
- DRAW
- Direct Read After Write
- DRD
- Data Reading Device
- DRDA
- Distributed Relational Database Architecture
- DRE
- Directional Reservation Equipment
- DRG
- Democratic Republic of Germany (East Germany)
- DRI
- Defense Research Internet (replaces Arpanet)
- DRI
- Digital Research, Incorporated [Corporate name]
- DRMU
- Digital Remote Measurement Unit
- DRP
- DECnet Routing Protocol
- DRS
- Data Rate Select (RS-232)
- DS
- Data Segment
- DS
- Digital Signal
- DS
- Digital carrier Span
- DS
- Direct Signal
- DS
- Directory Service
- DS
- Double-Sided
- DSA
- Dial System Assistance
- DSA
- Digital Storage Architecture
- DSA
- Directory Service Agent
- DSAB
- Distributed Systems Architecture Board
- DSBAM
- Double-SideBand Amplitude Module
- DSC
- Differential Scanning Calorimetry
- DSC
- Document Structuring Conventions
- DSCS
- Defense Satellite Communications System
- DSD
- Data Structure Diagram
- DSDC
- Direct Service Dial Capability
- DSE
- Data Structure Editor
- DSEE
- Domain Software Engineering Environment
- DSI
- Digital Speech Interpolation
- DSM
- Distinguished Service Medal
- DSN
- Deep Space Network
- DSN
- Digital Signal (level) N
- DSO
- Digital Storage Oscilloscope
- DSO
- Distinguished Service Order
- DSP
- Decessit Sine Prole (died without issue)
- DSP
- Defense Support Program (USAF/NRO)
- DSP
- Digital Signal Processor; Digital Signal Processing
- DSP
- Domain-Specific System
- DSR
- Data Set Ready (RS-232)
- DSR
- Digital Standard Runoff
- DSR
- Dynamic Service Register
- DSRI
- Digital Standard Relational Interface
- DSS
- Data Station Selector
- DSS
- Decision Support System
- DSS
- Direct Station Selection [telephony]
- DSSI
- Digital Storage Systems Interconnect
- DST
- Daylight Saving Time
- DSTN
- Double SuperTwisted Nematic
- DSU
- Digital Service Unit; Data Service Unit
- DSU
- Disk Subsystem Unit (Artecon)
- DSX
- Digital System X-connect
- DT
- Data Transmit
- DT
- Delirium Tremens
- DT
- Di-group Terminal
- DTA
- Differential ThermoAnalysis
- DTA
- Disk Transfer Area
- DTAS
- Digital Test Access System
- DTB
- Data Transfer Bus
- DTC
- Design To Cost
- DTC
- Di-group Terminal Controller
- DTC
- Digital Trunk Controller
- DTD
- Document Type Definition
- DTE
- Data Terminal Equipment
- DTF
- Dial Tone First payphone [telephony]
- DTG
- Direct Trunk Group
- DTI
- Department of Trade and Industry (U.K.)
- DTIF
- Digital Transmission Interface Frame
- DTL
- Diode Transistor Logic
- DTMF
- Dial Tone Multi Frequency [telephony]
- DTP
- DeskTop Publishing
- DTR
- Data Terminal Ready
- DTS
- Distributed Time Service
- DTSS
- Dartmouth TimeSharing System
- DTU
- Demand Transmission Unit
- DTU
- Di-group Terminal Unit
- DU
- Decision Unit
- DUA
- Directory User Agent
- DUATS
- Direct User Access Terminal System
- DUI
- Driving Under the Influence
- DUT
- Device Under Test
- DUV
- Data Under Voice
- DV
- Deo Vo lente (God willing)
- DVC
- Digital Voice Card
- DVI
- DeVice Independent
- DVI
- Digital Video Interactive
- DVM
- Digital Volt Meter
- DVM
- Doctor of Veterinary Medicine
- DVMA
- Direct Virtual Memory Access, see DMA, device uses =
MMU.
- DVMRP
- Distance-Vector Multicast Routing Protocol
- DVX
- Digital Voice eXchange
- DW
- Dead Weight
- DWAPS
- Defense Warehousing Automated Processing System
- DWB
- Documenter's WorkBench
- DWI
- Driving While Intoxicated
- DWIM
- Do What I Mean
- DX
- Distance (as in long distance radio communication)
- DXT
- Data eXtractT facility
- E
- East
- E
- Espionage
- E911
- Enhanced 911
- EAA
- Experimental Aircraft Association
- EADAS
- Engineering and Administrative Data Acquisition System
- EADASNM
- Engineering and Administrative Data Acquisition =
System/Network=20
Management, "EADAS/NM"
- EADASS
- Engineering and Administrative Data AcquiSition System
- EAEO
- Equal Access End Office
- EAFB
- Edwards Air Force Base
- EARN
- European Academic Research Network
- EAS
- Engineering Administration System
- EAS
- Extended Announcement System
- EAS
- Extended Area Service
- EASD
- Equal Access Service Date
- EASI
- Enhanced Asynchronous SCSI Interface
- EBCDIC
- Extended Binary Coded Decimal Interchange Code
- EBI
- Extensive Background Investigations
- EC
- European Community
- EC
- Exchange Carrier [telephony]
- ECAD
- Electronical Computer Aided Design
- ECAFE
- Economic Commission for Africa and the Far East
- ECAP
- Electronic Customer Access Program
- ECASS
- Electronically Controlled Automatic Switching System
- ECASS
- Export Control Automated Support System
- ECC
- Enter Cable Change
- ECC
- Error Checking and Correcting
- ECC
- Error Correction Code
- ECCM
- Electronic Counter-CounterMeasures
- ECCS
- Economic C (hundred) Call Seconds
- ECD
- East Coast Division (Sun)
- ECDO
- Electronic Community Dial Office
- ECF
- Enhanced Connectivity Facility
- ECG
- ElectroCardioGram
- ECL
- Emitter Coupled Logic (see also TTL)
- ECL
- Error Correction Logic
- ECLSS
- Environmental Control and Life Support System [Space]
- ECM
- Electronic Counter Measure
- ECM
- European Common Market
- ECMA
- European Computer Manufacturers Association
- ECN
- Engineering Computer Network (at Purdue)
- ECO
- Ecological
- ECO
- Electronic Central Office
- ECO
- Engineering Change Order
- ECOM
- Electronic Computer Originated Mail, "E-COM"
- ECPA
- Electronic Communication Privacy Act
- ECPT
- Electronic Coin Public Telephone
- ECR
- Engineering Change Request
- ECS
- Electronic Crosconnect System
- ECS
- Environmental Control System
- ECSA
- Exchange Carriers Standards Association
- ECT
- ElectroConvulsive Therapy
- ECV
- Electric Cargo Vehicle [NASA OEXP]
- EDA
- Electron Donor-Acceptor
- EDA
- Electronic Design Automation
- EDAC
- Electromechanical Digital Adapter Circuit
- EDD
- Expert Dungeons & Dragons, "ED&D"
- EDF
- Electricite de France
- EDGAR
- Electronic Data Gathering, Analysis, and Retrieval
- EDI
- Electronic Data Interchange
- EDIF
- Electronic Design Interchange Format
- EDO
- Extended Duration Orbiter [Space]
- EDP
- Electronic Data Processing
- EDS
- Electronic Data Systems
- EDSX
- Electronic Digital Signal X-connect
- EDT
- Eastern Daylight Time
- EDTA
- Ethylene Diamine Tetraacetic Acid
- EDTCC
- Electronic Data Transmission Communications Central
- EDV
- Elektronische DatenVerarbeitung
- EE
- Electrical or Electronics Engineer
- EEC
- European Economic Community
- EECT
- End-to-End Call Trace
- EEDP
- Expanded Electronic tandem switching Dialing Plan
- EEG
- ElectroEncephaloGram
- EEHO
- Either End Hop Off
- EEI
- Equipment-to-Equipment Interface
- EEL
- Epsilon Extension Language
- EEM
- External Expansion Module (Sun)
- EEO
- Errors and Omissions Excepted, "E&EO"
- EEPROM
- Electrically Erasable Programmable Read Only Memory
- EFD
- Ellington Field, Houston TX
- EFI
- Electronics For Imaging (Co.)
- EFIS
- Electronic Flight Instrumentation System
- EFRAP
- Electronic Feeder Route Analysis Program
- EFS
- Error Free Seconds
- EG
- Exempli Gratia, "e.g." (for example)
- EGA
- Enhanced Graphics Adapter
- EGP
- Exterior Gateway Protocol
- EGREP
- Extended GREP
- EGRET
- Energetic Gamma Ray Experiment Telescope (on GRO)
- EHF
- Extremely High Frequency (30-300GHz)
- EHP
- Error Handling Package
- EHT
- Extended Hueckel Theory
- EIA
- Electronics Industry Association
- EIN
- Employer Identification Number
- EINE
- EINE Is Not Emacs
- EIS
- Environmental Impact Statement
- EIS
- Executive Information Systems
- EIS
- Expanded Inband Signaling
- EIS
- Extended Instruction Set
- EISA
- Extended Industry-Standard Architecture
- EISB
- Electronic Imaging Standards Board
- EISS
- Economic Impact Study System
- EISS
- European Intelligence Support System
- EITS
- Encoded Information TypeS
- EJASA
- Electronic Journal of the Astronomical Society of the =
Atlantic
- EKG
- ElectroKardioGramm (see ECG)
- EKTS
- Electronic Key Telephone Sets
- EL
- ElectroLuminescent (as in display)
- ELC
- Extra(Excellent) Low Cost
- ELDOR
- ELectron-electron DOuble Resonance
- ELF
- Executable and Linking Format
- ELF
- Extensible Linking Format
- ELF
- Extremely Low Frequency
- ELLE
- Elle Looks Like Emacs
- ELM
- ELectronic Mailer
- ELO
- Electric Light Orchestra
- ELP
- Emerson, Lake and Palmer (or Powell)
- ELT
- Emergency Locator Transmitter
- ELV
- Expendable Launch Vehicle [Space]
- EM
- Engineering Model
- EM
- Enlisted Man (see EW)
- EM
- ``Ear & Mouth''; recEive & transMit leads of a =
signalling=20
system, "E&M"
- EMA
- Electronic Mail Association
- EMA
- Enterprise Management Architecture (DEC)
- EMACS
- Editor MACroS; Eight Megabytes And Constantly Swapping
- EMAIL
- Electronic MAIL, "E-MAIL"
- EMBL
- European Molecular Biological Laboratory
- EMC
- ElectroMagnetic Compatibility
- EMF
- ElectroMotive Force
- EMI
- ElectroMagnetic Interference
- EML
- Expected Measured Loss
- EMP
- ElectroMagnetic Pulse
- EMPRESS
- EnvironMental Pulse Radiation Environment Simulator for =
Ships
- EMR
- ElectroMagnetic Response
- EMS
- Electronic Message System
- EMS
- Element Management System
- EMS
- Expanded Memory Specification
- EMS
- Element Management System, part of AT&T's UNMA
- EMT
- Emergency Medical Technician
- EMU
- ElectroMagnetic Unit
- EMU
- Extravehicular Mobility Unit [Space]
- ENDOR
- Electron-Nuclear DOuble Resonance
- ENEA
- Comitato Nazionale per la Ricerca e per lo Sviloppo dell' =
Energia=20
Nuclaeare e delle Energie Alternative, Italy
- ENET
- Ethernet, "E-Net"
- ENFIA
- Exchange Network Facility for Interstate Access
- ENIAC
- Electronic Numerical Integrator and Calculator
- ENS
- ENSign
- EO
- End Office [telephony]
- EO
- Erasable Optical
- EOD
- Erasable Optical Disk
- EOE
- Electronic Order Exchange
- EOE
- Equal Opportunity Employer
- EOF
- End Of File
- EOL
- End Of Line
- EOM
- End Of Month
- EOS
- Earth Observing System
- EOS
- Electrical OverStress
- EOS
- Extended Operating System
- EOT
- End Of Transmission
- EOTT
- End Office Toll Trunking
- EP
- Emulation Program
- EP
- Experience Points
- EP
- Extended Play
- EPA
- Enhanced Performance Architecture
- EPA
- Environmental Protection Agency
- EPD
- Entry Products Division
- EPL
- Electronic switching system Program Language
- EPOS
- Engineering and Project-management Oriented Support =
system
- EPPS
- Electronic Pre-Press Systems.
- EPR
- Electron Paramagnetic Resonance
- EPR
- Ethylene Propylene Rubber
- EPRI
- Electric Power Research Institute
- EPROM
- Erasable Programmable Read-Only Memory
- EPS
- Encapsulated PostScript
- EPSCS
- Enhanced Private Switched Communication Service
- EPSF
- Encapsulated PostScript File
- EPSF
- Encapsulated PostScript Format
- EPSI
- Encapsulated PostScript Interchange
- EPT
- Empire of the Petal Throne
- EPTS
- Electronic Problem Tracking System
- EPUB
- Electronic PUBlication
- EPW
- Enemy Prisoner of War
- EQ
- Educational Quotient (see IQ)
- EQUEL
- Embedded QUEL
- ER
- Emergency Room
- ER
- Error Register
- ERA
- Earned Run Average
- ERA
- Entity-Relationship-Attribute
- ERA
- Equal Rights Amendment
- ERAR
- Error Return Address Register
- ERD
- Entity-Relationship Diagram
- ERE
- Entity-Relationship Editor
- EREP
- Environmental Recording Editing and Printing
- ERICA
- Experiment on Rapidly Intensifying Cyclones over the =
Atlantic
- ERICA
- Eyegaze Response Interface Computer Aid
- ERISA
- Employee Retirement Income Security Act
- ERL
- Echo Return Loss
- ERP
- Effective Radiated Power
- ERS
- Earth Resources Satellite (as in ERS-1)
- ERT
- Earth Resources Technology [Space]
- ERU
- Error Return address Update
- ES
- End System
- ES
- Expert System
- ES
- Extra Segment
- ESA
- Enterprise Systems Architecture (MVS/XA followon)
- ESA
- European Space Agency
- ESAC
- Electronic Surveillance Assistance Center
- ESAC
- Electronic Systems Assistance Center
- ESB
- Emergency Service Bureau
- ESCA
- Electron Spectroscopy for Chemical Analysis
- ESD
- ElectroStatic Discharge
- ESD
- Engineering Service Division
- ESDI
- Enhanced Standard Device Interface
- ESE
- East South East
- ESF
- Extended SuperFrame
- ESF
- Extended Superframe Format
- ESH
- End System Hello
- ESI
- ElectroStatic Interference
- ESIS
- End System-Intermediate System, "ES-IS"
- ESL
- Emergency Stand-Alone
- ESM
- Electronic Support Measures
- ESM
- External Storage Module (Sun)
- ESMD
- Embeded Storage Module Disk
- ESMD
- Enhanced Storage Module Device
- ESN
- Electronic Serial Number
- ESN
- Electronic Switched Network
- ESO
- European Southern Observatory
- ESOP
- Employee Stock Ownership Plan
- ESP
- Enhanced Service Provider
- ESP
- Extra Sensory Perception
- ESPEC
- Ethernet SPECification (DIX)
- ESPRIT
- European Strategic Programme of Research and Development =
in=20
Information Technology
- ESPS
- Entropic Signal Processing System
- ESR
- Electron Spin Resonance
- ESS
- Electronic Switching System [telephony]
- ESS
- Environmental Stress Screening
- ESSEX
- Experimental Solid State EXchange
- ESSX
- Electronic Switching Systen eXchange
- EST
- Eastern Standard Time
- ET
- Eastern Time
- ET
- Electron Transfer
- ET
- External Tank [of the US Space Shuttle]
- ET
- ExtraTerrestrial [Space]
- ETA
- Estimated Time of Arrival
- ETACC
- External Tank/Aft Cargo Carrier, "ET/ACC" (see also ET)=20
[Space]
- ETAS
- Emergency Technical ASsistance
- ETC
- Et cetera, and so on...
- ETD
- Estimated Time of Departure
- ETF
- Electronic Toll Fraud
- ETFD
- Electronic Toll Fraud Device [telephony]
- ETH
- Eidgnoessiche Techniche Hochschule
- ETLA
- Extended Three Letter Acronym
- ETN
- Electronic Tandem Network
- ETO
- Earth-to-Orbit [Space]
- ETR
- Eastern Test Range
- ETS
- Electronic Tandem Switching
- ETS
- Electronic Translation System
- ETSACI
- Electronic Tandem Switching Adminstration Channel =
Interface
- ETSI
- European Telecommunication Standards Institute
- ETSSP
- ETS Status Panel
- ETV
- Education TeleVision
- EUC
- Extended Unix Code
- EUNET
- European UNIX NETwork, "EUnet"
- EUUG
- European UNIX Users Group
- EUV
- Extreme UltraViolet
- EUVE
- Extreme UltraViolet Explorer
- EVA
- ExtraVehicular Activity
- EVX
- Electronic Voice eXchange
- EW
- Electronic Warfare
- EW
- Enlisted Woman (see EM)
- EWO
- Engineering Work Order
- EWOS
- European Workshop for Open Systems
- EWS
- Engineering Work Station
- EXPO
- World Exposition
- FA
- Factory Automation
- FA
- Finance Accounting (Sun)
- FA
- Football Association (British soccer)
- FA
- Fuse Alarm
- FAA
- Federal Aviation Administration (U.S.)
- FAB
- Feature-Advantage-Benefit
- FACD
- Foreign Area Customer Dialing
- FACOM
- Fujitsu Automatic Computer
- FACS
- Facilities Assignment and Control System
- FAD
- Flavin Adenine Diphosphate
- FAE
- Fuel Air Explosive
- FAESHED
- Fuel Air ExploSive, HElicopter Delivered
- FAG
- Forced Air Gas
- FAI
- Federation Aeronautique International
- FAO
- Food and Agriculture Organization [U.S. Government]
- FAQ
- Frequently-Asked Question(s)
- FAQL
- Frequently-Asked Questions List
- FAR
- Federal Acquisition Regulation
- FAR
- Federal Aviation Regulations (U.S.)
- FAR
- Federation of American Research
- FARNET
- Federation of American Research NETworks
- FAS
- Foreign Agricultural Service
- FAS
- Free Alongside Ship
- FASST
- Flexible Architecture Standard System Technology
- FAST
- Fast Auroral SnapshoT explorer
- FAST
- First Application System Test
- FAT
- File Allocation Table
- FAT
- Foreign Area Translation
- FAX
- FAcsimile
- FB
- Freight Bill
- FBI
- Federal Bureau of Investigation [U.S. Government]
- FBO
- Fixed-Base Operator
- FBV
- a Dutch acronym for "Fluke, Ltd."
- FC
- Full Color
- FCAP
- Facility CAPacity
- FCB
- File Control Block
- FCC
- Federal Communications Commission [U.S. Government]
- FCC
- Federal Computer Conference
- FCC
- Forward Command Channel
- FCCSET
- Federal Coordinating Council for Science, Education and =
Technology=20
(under OSTP)
- FCFS
- First Come, First Served
- FCG
- False Cross or Ground
- FCO
- Field Change Order
- FCRC
- Federal Contract Research Center
- FCS
- File Control Systemction
- FCS
- First Customer Ship (SunOS Releases)
- FCS
- Frame Check/Control Sequence
- FCT
- Four Corner Test (4FCT)
- FD
- File Descriptor
- FD
- Floppy/Flexible Disk(ette)/Drive
- FDA
- Food and Drug Administration [U.S. Government]
- FDC
- Floppy Disk Controller
- FDDI
- Fiber Distributed Data Interface
- FDDIII
- FDDI supporting isochronous traffic, "FDDI-II"
- FDHD
- Floppy Drive High Density
- FDIC
- Federal Deposit Insurance Corporation [U.S. =
Government]
- FDL
- File Definition Language
- FDM
- Frequency-Division Multiplexing
- FDP
- Field Development Program
- FDR
- Franklin Delano Roosevelt
- FDX
- Full DupleX
- FE
- Format Effecters
- FE
- Front End
- FEA
- Finite Element Analysis
- FEC
- Forward Error Correction
- FED
- Far End Data
- FEDSIM
- FEDeral Systems Integration and Management center
- FEHQ
- Fluke European HeadQuarters
- FEM
- Finite Element Modeling
- FEMA
- Federal Emergency Management Agency
- FEMF
- Foreign Electro-Motive Force
- FEP
- Fluorinated Ethylene Propylene
- FEP
- Front End Processor
- FEPC
- Fair Employment Practices Commission
- FEPS
- Facility and Equipment Planning System
- FERS
- Federal Employees Retirement System
- FET
- Far East Trading
- FET
- Federal Excise Tax
- FET
- Field Effect Transistor
- FEV
- Far End Voice
- FF
- Flip-Flop
- FFA
- Field Failure Analysis
- FFA
- Future Farmers of America
- FFRDC
- Federally Funded Reseach and Development Center
- FFS
- Fast File System
- FFT
- Fast Fourier Transform
- FGA
- Feature Group A, "FG-A" [telephony:Line Side term. for LD=20
carriers]
- FGB
- Feature Group B, "FG-B" [telephony:Trunk Side term. for LD =
carriers (aka ENFIA B), 950 service]
- FGC
- Feature Group C, "FG-C" [telephony]
- FGD
- Feature Group D, "FG-D" [telephony:Trunk Side term. for LD =
carriers, 1+ service]
- FGREP
- Fixed GREP
- FGS
- Fine Guidance Sensors (on HST)
- FHA
- Federal Housing Administration
- FHA
- Future Homemakers of America
- FHLMC
- Federal Home Loan Mortgage Association (Freddie Mac)
- FHMA
- Federal Home Mortgage Association (Fannie Mae)
- FHST
- Fixed Head Star Trackers (on HST)
- FIB
- Focused Ion Beam
- FICA
- Federal Insurance Contributions Act
- FID
- Free Induction Decay
- FIDO
- Fog Investigation Dispersal Operation
- FIFO
- First In, First Out
- FILO
- First In, Last Out
- FIMS
- Forms Interface Management System
- FIN
- Field Information Notice
- FINE
- FINE Is Not Emacs
- FIO
- Frequency In and Out
- FIOC
- Frame Input/Output Controller
- FIP
- Facility Interface Processor
- FIPS
- Federal Information Processing Standard
- FIR
- Far InfraRed
- FIR
- Field Information Report
- FIR
- Finite Impulse Response
- FIRMR
- Federal Information Resource Management Regulation
- FIT
- Federal Information Technologies, inc.
- FITS
- Flexible Image Transport System
- FL
- Florida
- FLACC
- Full Level Algol Checkout Compiler
- FLOP
- FLoating point OPeration
- FLOPS
- FLoating-point OPerations per Second
- FLRA
- Federal Labor Relations Authority
- FLS
- Floating License Server
- FLT
- Front Load Tape
- FM
- Frequency Modulation
- FMAC
- Facility Maintenance And Control
- FMB
- Federal Maritime Board
- FMC
- Flexible Manufacturing Cell
- FMCS
- Federal Mediation and Conciliation Service
- FMEA
- Failure Mode and Effect Analysis
- FMR
- Field Marketing Representative (Sun)
- FMS
- Fieldbus Message Specification
- FMS
- Financial Management Service (Treasury Dept)
- FMS
- Flexible Machining/Manufacturing System
- FMS
- Forms Management System
- FNC
- Federal Networking Council
- FNPA
- Foreign Numbering Plan Area
- FO
- Forecast Order
- FO
- Foreign Office
- FO
- Forward Observer
- FOAC
- Federal Office Automation Center
- FOB
- Free On Board
- FOC
- Faint Object Camera (on HST)
- FOC
- Fiber Optic Communications
- FOC
- Free Of Charge
- FOCSY
- FOldover Corrected SpectroscopY
- FOIA
- Freedom Of Information Act
- FOIMS
- Field Office Information Management System
- FOIRL
- Fiber Optic Inter Repeater Link
- FON
- Fiber Optics Network
- FOOBAR
- See FUBAR
- FOR
- Free On Rail
- FORCS
- Faa's Operational Reporting Communication System
- FORD
- Fix Or Repair Daily
- FORD
- Found On Road Dead
- FORTRAN
- FORmula TRANslator
- FOS
- Faint Object Spectrograph (on HST)
- FOSE
- Federal Office Systems Exposition
- FOT
- Fiber Optic Transceiver
- FOT
- Free On Truck
- FOV
- Field Of View
- FPA
- Floating Point Accelerator
- FPC
- Fish Protein Concentrate
- FPC
- Floating Point Coprocessor
- FPDU
- FTAM Protocol Data Unit
- FPE
- Floating Point Engine
- FPE
- Foam PolyEthylene
- FPHA
- Federal Public Housing Authority
- FPLA
- Field Programmable Logic Array (see PLA)
- FPM
- Feet Per Minute
- FPO
- Fleet Post Office
- FPP
- Floating Point Processor
- FPS
- Favorite Play Sequence
- FPS
- Feet Per Second
- FPS
- Foot-Pound-Second
- FPU
- Floating Point Unit
- FQDN
- Fully-Qualified Domain Name
- FR
- Flat Rate
- FR
- Frame Relay
- FRACTAL
- FRACTional dimensionAL
- FRAM
- Ferroelectric RAM
- FRB
- Federal Reserve Board
- FRD
- Fire RetarDant
- FRED
- Fred Resembles Emacs Deliberately
- FREE
- Fathers Rights and Equality Exchange
- FRG
- Federal Republic of Germany (West Germany)
- FRICC
- Federal Research Internet Coordinating Committee
- FROG
- Free Rocket Over Ground
- FRPG
- Fantasy Role Playing Game
- FRR
- Flight-Readiness Review
- FRS
- Federal Reserve System
- FRS
- Flexible Route Selection
- FRU
- Field Replacable Unit
- FS
- Field Service
- FS
- File System
- FS
- Fine Structure
- FS
- Floppy System
- FSCM
- Federal Supply Code for Manufactures
- FSDO
- Flight Standards District Office
- FSE
- Field Service Engineer
- FSF
- Free Software Foundation
- FSK
- Frequency Shift Keying
- FSLIC
- Federal Savings and Loan Insurance Corporation
- FSS
- Fast System Switch (System V)
- FSS
- Federal Supply Service
- FSS
- Flight Service Station
- FSU
- Florida State University
- FSU
- Former Soviet Union
- FSW
- Forward Swept Wings
- FT
- Foot
- FT
- Fourier Transform
- FT1
- fractional T1, common carrier transmission in multiples of =
64=20
kb/s
- FTAM
- File Transfer, Access, and Management (ISO FTP =
equivalent)
- FTC
- Federal Trade Commission
- FTE
- Factory Test Equipment
- FTG
- Final Trunk Group
- FTL
- Faster Than Light
- FTP
- File Transfer Protocol
- FTPI
- Flux Transitions Per Inch
- FTS
- Federal Telecommunications System [US Government]
- FTS
- Federal Telephone System [telephony]
- FTS
- Flight Telerobotic Servicer [Space]
- FTW
- File Tree Walk
- FTZ
- FernmeldeTechnisches Zentralamt
- FTZ
- Free Trade Zone
- FUBAR
- F***ed Up Beyond All Recognition
- FUD
- Fear, Uncertainty, and Doubt
- FUS
- Full-Use Standard
- FUSE
- Far Ultraviolet Spectroscopic Explorer
- FV
- folio verso, "fv" (on the back of the page)
- FW
- Fringeworthy
- FWD
- Front Wheel Drive
- FWHM
- Full Width at Half Maximum
- FWIW
- For What It's Worth
- FX
- Foriegn eXchange [telephony]
- FX
- special effects
- FY
- Fiscal Year
- FYA
- For Your Action
- FYI
- For Your Information
- FYS
- For Your Signature
- G
- Gravity
- GA
- Gamblers Anonymous
- GA
- General Assembly
- GA
- General Average
- GA
- General of the Army
- GA
- Georgia
- GAAP
- Generally Accepted Accounting Principles
- GAAS
- Gallium Arsenide, "GaAs"
- GAB
- Group Audio Bridging [telephony]
- GADO
- General Aviation District Office
- GAIA
- Earth's self-sustaining Biosphere, "Gaia"
- GAIA
- GUI Application Interoperability Architecture
- GAL
- Generic Array Cell
- GAN
- Global Area Network
- GAO
- General Accounting Office
- GAR
- Grand Army of the Republic
- GAS
- Get-Away Special
- GATED
- GATEway Deamon
- GATT
- General Agreement on Tariffs and Trade
- GAW
- Guaranteed Annual Wage
- GB
- Gangbusters
- GB
- GigaByte
- GB
- Great Britain
- GBIP
- General Purpose Interface Bus
- GBS
- Group Bridging Service
- GBT
- Green Bank Telescope
- GC
- Garbage Collection (LISP)
- GC
- Gas Chromatograph(y)
- GC
- Graphic Context
- GCA
- General Communications Architecture (Ingres)
- GCA
- Ground Controlled Approach
- GCC
- Gnu C Compiler
- GCD
- Ground Controlled Descent
- GCL
- Graphics Command Language
- GCM
- General Court Martial
- GCR
- Group-Coded Recording (magnetic tape, 6250 bpi)
- GCS
- Group Control System
- GCT
- Greenwich Civil Time
- GCVS
- General Catalog of Variable Stars
- GDB
- Gnu DeBugger
- GDI
- Graphical Display Interface
- GDOS
- Graphics Device Operating System
- GDP
- Gross Domestic Product
- GDS
- Great Dark Spot
- GDT
- Global Descriptor Table
- GE
- General Electric
- GECOS
- General Electric Comprehensive Operating System
- GECR
- Global Environmental Change Report
- GEIS
- General Electric Information Systems
- GEISCO
- General Electric Information Services COmpany
- GEM
- Giotto Extended Mission
- GEM
- Graphics Environment Manager
- GEMS
- General Electric Medical Systems
- GEO
- Geosynchronous Earth Orbit [Space]
- GFCI
- Ground Fault Circuit Interrupter
- GGP
- Gateway-to-Gateway Protocol
- GHQ
- General HeadQuarters
- GHRS
- Goddard High Resolution Spectrograph (on HST)
- GHZ
- Giga HertZ, "GHz" (unit of frequency, 1,000,000,000 cycles =
per=20
second)
- GI
- Galvanized Iron
- GI
- Gastro Intestinal
- GI
- General Issue
- GI
- Government Issue
- GID
- Group IDentity
- GIF
- Graphics Interchange Format
- GIGO
- Garbage In, Garbage Out
- GIN
- Graphics INput
- GISS
- Goddard Institute for Space Studies
- GJIAGDVYFCN
- Go Jump In a God Damned Volcano, You Fucking Cave Newt=20
(talk.bizarre)
- GKS
- Graphical Kernel Standard
- GKSM
- GKS Metafile
- GL
- Graphic Library
- GLOMR
- Global Low-Orbiting Message Relay
- GM
- Game Master
- GM
- General Manager
- GM
- General Motors
- GM
- Guided Missile
- GMBH
- Gesellschaft Mit Beschraenkter Haftung
- GMC
- Giant Molecular Cloud
- GMD
- Gesellschaft fuer Mathematik und Datenverarbeitung
- GMRT
- Giant Meter-wave Radio Telescope
- GMT
- Greenwich Mean Time
- GMW
- Give me More Windows
- GND
- GrouND
- GNMA
- Government National Mortgage Association (Ginnie Mae)
- GNP
- Gross National Product
- GNU
- GNU's Not Unix
- GOES
- Geostationary Orbiting Environmental Satellites
- GOK
- God Only Knows
- GOP
- Grand Old Party
- GOS
- Grade Of Service
- GOSIP
- Government Open Systems Interconnection Profile
- GOX
- Gaseous OXygen
- GP
- General Practitioner
- GP
- Grand Prix
- GP
- Graphics Processor
- GP
- Group Processor
- GPC
- General Purpose Computer
- GPCI
- Graphics Processor Command Interface
- GPD
- Graphics Products Division
- GPI
- Graphics Programming Interface
- GPIB
- General-Purpose Interface Bus
- GPL
- GNU Public License
- GPL
- General Public License
- GPL
- Graphics Programming Language
- GPM
- Gross Product Margin
- GPO
- General Post Office
- GPO
- Government Printing Office
- GPS
- General Problem Solver
- GPS
- Global Positioning System [Space]
- GPSI
- Graphics Processor Software Interface
- GPSS
- General Purpose System Simulator
- GQ
- General Quarters
- GRASS
- Geographical Resources Analysis Support System
- GRB
- Gamma Ray Burst(er)
- GRD
- GRounD
- GREP
- Global Regular Expression Print, g/re/p, (UNIX =
command)
- GRI
- Graduate, Realtors Institute
- GRIPS
- Government Raster Image Processing Software
- GRO
- Gamma Ray Observatory [Space]
- GROPE
- Graphical representation of protocols in Estelle
- GRPMOD
- GRouP MODulator, "GRP MOD"
- GRS
- Gamma Ray Spectrometer (on Mars Observer)
- GRS
- Great Red Spot
- GS
- General Schedule
- GS
- Glide Slope
- GS
- Gray-Scale
- GSA
- General Services Adminstration [U.S. Government]
- GSA
- Girl Scouts of America
- GSA
- Government Services Administration
- GSAT
- General telephone and electronics SATellite =
corporation
- GSBCA
- General Services administration Board of Contract =
Appeals
- GSC
- Guide Star Catalog (for HST)
- GSFC
- Goddard Space Flight Center (Greenbelt, MD) [NASA]
- GSTS
- Ground-based Surveillance and Tracking System
- GT
- Gross Ton
- GT
- Group Technology
- GTC
- General Telephone Company
- GTE
- General Telephone and Electric [Corporate name]
- GTO
- Gaussian Type Orbital
- GTO
- Geostationary Transfer Orbit
- GTSI
- Government Technology Services, inc.
- GTT
- Global Title Transmission
- GUI
- Graphical User Interface
- GUIDE
- Graphical User Interface Design Editor (Sun)
- GUS
- Guide to the Use of Standards (SPAG publication)
- GUUG
- German UNIX Users Group
- GW
- Gamma World
- GWEN
- Ground Wave Emergency Network
- GWS
- Graphics Work Station
- H
- Harn
- H
- Height
- HA
- Home Automation
- HACD
- Home Area Customer Dialing
- HAL
- Hard Array Logic
- HAL
- Hardware Abstraction Layer
- HAL
- Heuristically programmed ALgorithmic computer (2001)
- HAM
- Hold And Modify
- HANFS
- Highly Available Network File System
- HAO
- High Altitude Observatory
- HAP
- Host Access Protocol
- HARM
- High-Availability, Reliability, and Maintainability
- HASP
- Houston Automated Spooling Program
- HAT
- Hashed Address Table
- HB
- HemogloBin, "Hb"
- HBA
- Host Bus Adapter (SCSI)
- HBM
- Her British Majesty; His British Majesty
- HBO
- Home Box Office
- HC
- Holy Communion
- HC
- House of Commons
- HCF
- Halt and Catch Fire
- HCFA
- Health Care Financing Administration
- HCL
- High Cost of Living
- HCL
- Host Control Links
- HCR
- Hodge Computer Research, inc.
- HCSDS
- High-Capacity Satellite Digital Service
- HCTDS
- High-Capacity Terrestrial Digital Service
- HD
- Hard Disk
- HD
- Heavy Duty
- HD
- Henry Draper catalog entry
- HD
- High Density
- HDA
- Head Disk Assembly (in winchester disk drives)
- HDBV
- Host Data Base View
- HDL
- High Density Lipoprotein
- HDLC
- High-level Data Link Control
- HDN
- Hochgeschwindigkeits-DatenNetz
- HDTV
- High Definition TeleVision
- HDX
- Half DupleX
- HE
- His Eminence; His Excellency
- HEAO
- High Energy Astronomical Observatory [satellite]
- HEAP
- Home Energy Assistance Program
- HEDM
- High Energy-Density Matter [Space]
- HEHO
- High End Hop Off
- HEM
- High-level Entity Management
- HEMP
- Help End Marijuana Prohibition
- HEMS
- High-level Entity Management System
- HEMT
- High Electron Mobility Transistor
- HEO
- High Earth Orbit [Space]
- HEP
- High Energy Physics
- HERA
- HErmes Robotic Arm, "HeRA"
- HERO
- Hazards of Electromagnetic Radiation to Ordnance
- HETCOR
- HETeronuclear chemical-shift CORrelation
- HF
- Hawthorne Farms (Intel)
- HF
- High Fantasy
- HF
- High Frequency (3-30MHz)
- HFC
- HyperFine (splitting) Constant
- HFE
- Human Factors Engineering
- HFS
- Hierarchical File System (Apple Macintosh)
- HFS
- HyperFine Splitting
- HGA
- High Gain Antenna
- HGC
- Hercules Graphics Card
- HI
- Hawaii
- HIC
- Hybrid Integrated Circuit
- HIFO
- Highest-In, First-Out
- HIIPS
- Hud Integrated Information Processing Services
- HIPPI
- High Performance Peripheral Interface
- HIPPI
- HIgh Performance Parallel Interface
- HIRES
- HI-RESolution
- HIS
- Honeywell Information System
- HIV
- Human Immuno-deficiency Virus
- HLC
- Heavy Lift Capability [Space]
- HLHSR
- Hidden Line & Hidden Surface Removal
- HLL
- High-Level Language
- HLV
- Heavy Lift Vehicle [Space]
- HM
- High-resolution Monochrome
- HMA
- High Memory Area
- HMC
- Halley Multicolor Camera (on Giotto)
- HMO
- Hueckel Molecular Orbital
- HMOS
- High performance Metal Oxide Semiconductor (see MOS)
- HMP
- Host Monitoring Protocol
- HMPA
- HexaMethylPhosphorAmide (HMPT)
- HMPT
- HexaMethylPhosphoric Triamide
- HMS
- His/Her Majesty's Ship
- HMT
- His/Her Majesty's Transport
- HNPA
- Home Numbering Plan Area [telephony]
- HNS
- Hospitality Network Service
- HOBIC
- HOtel Billing Information Center
- HOBIS
- HOtel Billing Information System
- HOESY
- Heteronuclear Overhauser Enhancement SpectroscopY
- HOL
- High-Order System
- HOMO
- Highest Occupied Molecular Orbital
- HOTOL
- HOrizontal Take-Off and Landing
- HOW
- Home Owners Warranty
- HP
- Hewlett-Packard, inc. [Corporate name]
- HP
- High Pressure
- HP
- Higher Power (sort of an AA "in" term, usually God)
- HP
- Hit Points
- HP
- HorsePower
- HPD
- High Performance Division (Sun group)
- HPFS
- High Performance File System (OS/2)
- HPGE
- High Purity Germanium
- HPGL
- Hewlett Packard Graphics Language
- HPIB
- Hewlett-Packard Interface Bus
- HPLC
- High-Performance Liquid Chromatography
- HPLT
- High-Productivity Languages/Tools, "HPL/T"
- HPN
- White Plains NY
- HPO
- High Performance Option
- HPPA
- HP Precision Architecture
- HQ
- HeadQuarters
- HR
- Hertzsprung-Russell (diagram)
- HR
- House of Representatives
- HR
- Human Resources
- HRH
- Her/His Royal Highness
- HRI
- High Resolution Imager (on ROSAT)
- HS
- High School
- HSB
- Hue, Saturation, Brightness
- HSC
- Hierarchical Storage Controller
- HSFS
- High Sierra File System
- HSI
- High Speed Interface
- HSI
- Horizontal Situation Indicator
- HSLN
- High Speed Local Network
- HSP
- High Speed Photometer (on HST)
- HSSDS
- High-Speed Switched Digital Service
- HST
- Hawaiian Standard Time
- HST
- High Speed Technology
- HST
- Hubble Space Telescope
- HT
- High Tension (as in electric power transmission)
- HT
- Horizontal Tab
- HTK
- Hits To Kill
- HU
- High Usage
- HUAC
- House Unamerican Activities Committee
- HUD
- Heads Up Display
- HUD
- Housing and Urban Development [U.S. Government]
- HUGE
- Hewlett-packard Unsupported Gnu Emacs
- HUT
- Hopkins Ultraviolet Telescope (ASTRO package)
- HUTG
- High Usage Trunk Group
- HV
- High Voltage
- HVAC
- Heating, Ventilation, and Air Conditioning
- HW2000
- Highway 2000
- HWD
- Hayward CA
- HWM
- High-Water Mark
- HZ
- HertZ, "Hz" (unit of frequency, cycles per second)
- I18N
- InternationalizatioN (count the letters)
- IA
- Inspection Authorization
- IAB
- Interactive Application Builder
- IAB
- Internet Activities Board
- IAD
- Dulles International, Washington DC
- IAEA
- International Atomic Energy Agency
- IAH
- Houston (Intercontinental) TX
- IANA
- Internet Assigned Numbers Authority
- IAPPP
- International Amateur/Professional Photoelectric =
Photometry
- IATA
- International Air Transport Association
- IAU
- International Astronomical Union
- IAUC
- IAU Circular
- IB
- Instruction Buffer
- IBM
- Ingrained Batch Mentality
- IBM
- International Brotherhood of Magicians
- IBM
- International Business Machines [Corporate name]
- IBM
- Itty Bitty Machines
- IBN
- Integrated Business Network
- IC
- Independent Carrier
- IC
- Integrated Circuit
- IC
- Inter-LATA Carrier
- IC
- Interexchange Carrier [telephony] (see also IEC)
- ICAN
- Individual Circuit ANalysis
- ICB
- Interstate Computer Bank
- ICBM
- InterContinental Ballistic Missile
- ICBW
- I Could Be Wrong
- ICC
- Interstate Commerce Commission
- ICCC
- Inter-Client Communication Convention (X)
- ICCCM
- Inter-Client Communication Conventions Manual
- ICD
- Interactive Call Distribution
- ICE
- In-Circuit Emulator
- ICE
- International Cometary Explorer
- ICE
- Intrusion Countermeasures Electronics
- ICI
- Imperial Chemical Industries
- ICJ
- International Court of Justice
- ICL
- International Computers Limited
- ICLID
- Individual Calling Line ID
- ICM
- Integrated Call Management
- ICMP
- Internet Control Message Protocol
- ICON
- Inter CONtinental
- ICP
- Integrated Channel Processor
- ICP
- Inventory Control Points
- ICRC
- International Cosmic Ray Conference
- ICSC
- Inter-LATA Customer Service Center
- ICST
- Institute for Computer Science and Technology
- ICT
- In-Circuit Test
- ICT
- Interactive Consumer Terminal
- ID
- IDentification
- ID
- Idaho
- IDA
- Intercommunication Data Areas
- IDA
- International Dark-sky Association
- IDA
- International Development Association
- IDC
- Insulation Displacement Contact
- IDDD
- International Direct Distance Dial [telephony]
- IDE
- Integrated Development Environment
- IDE
- Integrated Drive Electronics
- IDE
- Interactive Development Environments, inc
- IDEA
- International Dance Exercise Association
- IDEA
- Internet Design, Engineering, and Analysis notes (IETF =
RFCs)
- IDF
- Intermediate Distributing Frame [telephony]
- IDI
- Initial Domain Identifier
- IDL
- Interactive Data Language
- IDL
- Interface Description Language
- IDM
- Image Data Manager
- IDP
- Initial Domain Part
- IDP
- Internet Datagram Protocol (XNS equivalent to IP)
- IDS
- Internal Directory System
- IDV
- Interlibrational Derived Vehicle [Space]
- IDVC
- Integrated Data/Voice Channel
- IE
- Id Est (that is)
- IE
- Id Est, "i.e." (that is)
- IE
- Indo-European
- IE
- Inter Ethernet
- IEC
- InterExchange Carrier [telephony] (see also IC)
- IEC
- International Electrotechnical Commission
- IEE
- Institute of Electrical Engineers (UK)
- IEEE
- Institute of Electrical and Electronics Engineers
- IEN
- Internet Engineering Notes
- IEN
- Internet Experiment Notebook (precedes RFCs)
- IESG
- Internet Engineering Steering Group
- IETF
- Internet Engineering Task Force
- IF
- InterFace, "I/F"
- IF
- Intermediate Frequency
- IFB
- Invitation For Bids
- IFC
- International Finance Corporation
- IFC
- International Freighting Corporation
- IFF
- Identification - Friend or Foe
- IFF
- Image File Format
- IFF
- Interchange File Format
- IFF
- Iterative Function Fractal
- IFIP
- International Federation for Information Processing
- IFLA
- International Federation of Library Associations
- IFR
- Instrument Flight Rules
- IFRPS
- Intercity Facility Relief Planning System
- IGES
- Initial Graphics Exchange Standard
- IGM
- InterGalactic Medium
- IGMP
- Internet Group Multicast Protocol
- IGP
- Interior Gateway Protocol
- IGY
- International Geophysical Year
- IHP
- Indicated HorsePower
- IHS
- Integrated Hospital Support
- IIA
- Information Industry Association
- IIE
- Institute of Industrial Engineers
- IIHF
- International Ice Hockey Federation
- IIL
- Integrated Injection Logic
- IIN
- Integrated Information Network
- IISPB
- Image and Information Standards Policy Board
- ILO
- International Labor Organization
- ILS
- Instrument Landing System
- ILV
- Industrial Launch Vehicle [Space]
- IM
- Installation & Maintenance, "I&M"
- IM
- Interface Module
- IMAP
- Interactive Mail Access Protocol
- IMAP3
- Interactive Mail Access Protocol - Version 3
- IMAS
- Integrated Mass Announcement System
- IMC
- Instrument Meteorological Contitions
- IMD
- Industry Marketing Development
- IMF
- International Monetary Fund
- IMHO
- In My Humble Opinion [net jargon]
- IMM
- Input Message Manual
- IMP
- Interface Message Processor [ARPANET/MILNET] (replaced by =
PSN)
- IMPACT
- Inventory Management Program and Control Technique
- IMS
- Integrated Management System
- IMSA
- International Motor Sports Association
- IMSL
- International Mathematical Subroutine Library
- IMSO
- Integrated Micro Systems Operation (Intel)
- IMSVS
- Information Management System/Virtual Storage, =
"IMS/VS"
- IMT
- Image Management Terminal
- IMT
- Inter-Machine Trunk
- IMTS
- Improved Mobile Telephone Service
- IN
- Indiana
- IN
- Intelligent Network
- INADEQUATE
- Incredible Natural Abundance Double-QUAntum Transfer=20
Experiment
- INADS
- INitialization and ADministration System [telephony]
- INC
- InterNational Carrier
- INDO
- Intermediate Neglect of Differential Overlap
- INDOR
- INternuclear DOuble Resonance
- INEPT
- Insensitive Nucleus Enhancement by Polarization =
Transfer
- INGRES
- Interactive Graphic Retrieval System
- INL
- Inter Node Link
- INMS
- integrated network management system, part of AT&T's =
UNMA
- INN
- Inter Node Network
- INOC
- Internet Network Operations Center
- INRI
- Iesus Nazerenus Rex Iudaeorum (Jesus of Nazareth, King of =
the=20
Jews)
- INRIA
- Institut National de Recherche en Informatique et =
Automatique
- INS
- Immigration and Naturalization Service
- INS
- Inertial Navigation System
- INS
- Information Network System
- INSTITUTE
- INSTITUTE's Name Shows That It's Totally Unrelated To =
EMACS
- INTAP
- INteroperability Technology Association for information=20
Processing
- INTELSAT
- INternational TELecommunications SATellite consortium
- INWATS
- INward Wide Area Telephone Service [telephony]
- IO
- Input/Output (sometimes I/O)
- IO
- Input/Output, "I/O"
- IO
- Inward Operator
- IOC
- Input/Output Computer (Aptec)
- IOC
- Input/Output Controller
- IOC
- International Operating Center [telephony, US]
- IOCC
- International Overseas Completion Center
- IOD
- Identified Outward Dialing
- IONL
- Internal Organization of the Network Layer
- IOOF
- International Order of Odd Fellows
- IOP
- Input-Output Processor
- IOT
- InterOffice Trunk
- IOTA
- Infrared-Optical Telescope Array
- IOTA
- International Occultation Timing Association
- IOU
- I Owe you (U)
- IOW
- In Other Words
- IP
- Industrial Products
- IP
- Information Provider [telephony]
- IP
- Innings Pitched
- IP
- Instruction Pointer
- IP
- Intermediate Point
- IP
- Internet Protocol
- IPC
- Integrated Personal Computer
- IPC
- InterProcess Communication
- IPC
- Inventory Process Control
- IPCC
- Intergovernmental Panel on Climate Change
- IPCE
- InterProcess Communication Environment
- IPCS
- Interactive Problem Control System
- IPDU
- Internet Protocol Data Unit
- IPE
- Integrated Programming Environment
- IPI
- Intelligent Peripheral Interface
- IPL
- Initial Program Load
- IPLAN
- Integrated PLanning And Analysis
- IPM
- Impulses Per Minute
- IPM
- Interruptions Per Minute
- IPMS
- InterPersonal Message Services
- IPO
- Initial Public Offering
- IPO
- International Procurement Office
- IPS
- Inches Per Second
- IPS
- Inertial Pointing System
- IPS
- Information Processing Standards
- IPSE
- Integrated Project-Support Environment
- IPT
- Williamsport PA
- IPX
- Internetwork Packet exchange (of Novell Inc.)
- IPXSPX
- Internet Packet eXchange/Sequenced Packet eXchange =
(Novell),=20
"IPX/SPX"
- IQ
- Intelligence Quotient (see EQ)
- IQR
- Inquiry
- IR
- Index Register
- IR
- Information Resource
- IR
- InfraRed
- IR
- Internetwork Router
- IRA
- Individual Retirement Account
- IRA
- Interprocedural Register Allocation
- IRA
- Irish Republican Army
- IRAF
- Image Reduction and Analysis Facility
- IRAS
- Infrared Astronomical Satellite
- IRBM
- Intelligent Repeater Bridge Module
- IRBM
- Intermediate Range Ballistic Missile
- IRC
- International Record Carrier
- IRC
- Internet Relay Chat
- IRD
- Investment Recovery Department
- IRDS
- Information Resource Dictionary Standard
- IRDS
- InfraRed Detection Set
- IRE
- Institute of Radio Engineers (old name for the now IEEE, =
q.v.)
- IRG
- InterRecord Gap
- IRM
- Information Resources Management
- IRM
- Intelligent Repeater Module
- IRMS
- Information Resources Management Service
- IRN
- Intermediate Routing Node
- IROR
- Internal Rate Of Return
- IRQ
- Interrupt ReQuest
- IRS
- Inertial Reference System
- IRS
- Internal Revenue Service
- IRSG
- Internet Research Steering Group
- IRTF
- Internet Research Task Force
- IS
- Information Separator
- IS
- Information Systems
- IS
- Intermediate System
- IS
- International Standard
- IS
- Interrupt Set
- ISA
- Industry-Standard Architecture
- ISAM
- Indexed Sequential Access Method
- ISAS
- Institute of Space and Astronautical Science (Japan)
- ISBD
- International Bibliographic Description
- ISBN
- International Standard Book Number
- ISC
- Information Services Center
- ISC
- Interactive Systems Corporation
- ISC
- International Switching Center
- ISCH
- Interstitial-Cell-Stimulating Hormone (same as LH)
- ISDN
- Integrated Services Digital Network
- ISDT
- Integrated Systems Development Tool
- ISEE
- International Sun Earth Explorer (usually ISEE-3)
- ISF
- Information Systems Factory
- ISFUG
- Integrated Software Federal User Group
- ISH
- Intermediate System Hello
- ISI
- Information Sciences Institute (at USC)
- ISIS
- Intermediate System to Intermediate System, "IS-IS"
- ISLM
- Integrated Services Line Module
- ISLU
- Integrated Services Line Unit
- ISM
- InterStellar Medium
- ISN
- Information Systems Network
- ISN
- Integrated Systems Network
- ISO
- Infrared Space Observatory
- ISO
- International Standards Organization
- ISODE
- ISO Development Environment
- ISOO
- Information Security Oversight Office
- ISOP
- Incentive Stock Option Plan
- ISPM
- International Solar Polar Mission
- ISR
- Institute of Snow Research
- ISRG
- Independent Space Research Group
- ISS
- Integrated Switching System
- ISSI
- Information Security Systems Inc.
- ISSN
- Integrated Special Services Network
- ISSN
- International Standard Serial Number
- IST
- Initial System Test
- ISUP
- Integrated Services User Part
- ISV
- Independent Software Vendor
- ISV
- Instantaneous Speed Variation
- ISY
- International Space Year
- IT
- Industrial Technology
- IT
- Information Technology
- ITC
- Independent Telephone Company
- ITC
- Inter-Task Communication
- ITM
- Information Technology Management
- ITS
- Incompatible Timesharing System
- ITS
- Institute of Telecommunication Science
- ITSEC
- Information Technology Security Evaluation Criteria
- ITSO
- Incoming Trunk Service Observation
- ITT
- International Telephone and Telegraph
- ITU
- International Telecommunications Union
- ITUSA
- IT Users Standards Association
- IU
- Integer Unit
- IUE
- International Ultraviolet Explorer
- IUS
- Inertial Upper Stage [Space]
- IUV
- Interlibrational Utility Vehicle [Space]
- IVDT
- Integrated Voice/Data Terminal
- IVP
- Installation Verification Program
- IVTS
- International Video Teleconferencing Service
- IWBNI
- It Would Be Nice If
- IWC
- Inside Wire Cable
- IWS
- Intelligent Work-Station
- IWW
- International Workers of the World
- IX
- Interactive eXecutive
- IXC
- IntereXchange Carrier (aka LD)
- IXM
- IntereXchange Mileage
- JACM
- Journal of the Association for Computing Machinery
- JAL
- Japan Airline
- JANET
- Joint Academic Network (U.K.)
- JBS
- John Birch Society
- JC
- Jesus Christ
- JC
- Joint Compound (plumbing)
- JC
- Julius Caesar
- JC
- Junior College
- JCA
- Jewelry Crafts Association
- JCAC
- Joint Civil Affairs Committee
- JCAE
- Joint Committee on Atomic Energy
- JCAMP
- Joint Committee on Atomic and Molecular Physical data
- JCEE
- Joint Council on Economic Education
- JCET
- Joint Council on Educational Television
- JCL
- Job Control Language
- JCS
- Joint Chiefs of Staff
- JD
- Justice Department
- JDS
- John Dewey Society
- JECC
- Japan Electronic Computer Company
- JEIDA
- Japan Electronics Inderstry Development Association
- JEM
- Japanese Experiment Module (for SSF)
- JES
- Job Entry System
- JES
- John Ericsson Society
- JESUS
- Job Entry System of the University of Saskatuan
- JFET
- Junction FET
- JFIF
- JPEG File Interchange Format
- JFK
- John F. Kennedy (and the international airport)
- JFMIP
- Joint Financial Management Improvement Program
- JFS
- Next Generation of JLE
- JGR
- Journal of Geophysical Research
- JI
- Justice, Inc.
- JIC
- Joint Industry Council
- JIC
- Joint Intelligence Center
- JIC
- Just in Case
- JILA
- Joint Institute for Laboratory Astrophysics
- JIM
- Job Information Memorandum
- JINTACCS
- Joint INteroperability of TActical Command and Control =
Systems
- JIS
- Japan Industrial Standards
- JISC
- Japanese Industrial Standards Committee
- JIT
- Just In Time
- JLE
- Japanese Language Enveronment
- JMS
- John Milton Society
- JMX
- Jumbogroup MultipleX
- JO
- Job Order
- JO
- Junior Officer
- JOAT
- Jack Of All Trades
- JOVE
- Jonathan's Own Version of Emacs
- JOVIAL
- Jules Own Version of the International Algorithmic =
Language
- JPEG
- Joint Photographic Experts Group
- JPL
- Jet Propulsion Laboratory
- JRC
- Junior Red Cross
- JSC
- Johnson Space Center (NASA)
- JSD
- Jackson System Development
- JSN
- Junction Switch Number
- JSRC
- Joint Services Review Committee
- JST
- Japan Standard Time
- JSW
- Junctor SWitch
- JTIDS
- Joint Tactical Information Distribution Systems
- JTM
- Job Transfer and Manipulation
- JUNET
- Japan UNIX Network
- JV
- Junior Varsity
- JVNC
- John von Neumann (Super Computer) Center, "JvNC"
- JVNCNET
- John von Neumann (Super Computer) Center network, =
"JvNCnet"
- K
- Kilobit
- K9
- canine (K9 corps - army dogs)
- KAO
- Kuiper Airborne Observatory
- KAOS
- Killing as Organized Sport
- KB
- Key Board
- KB
- KiloByte
- KBPS
- KiloBits Per Second
- KBS
- Knowledge-Based System
- KC
- King's Counsel (QC when queen reigning)
- KC
- Knights of Columbus
- KCL
- Kyoto Common Lisp
- KD
- Kiln Dried
- KD
- Knocked Down; Knock-Down
- KDCI
- Key Display Call Indicator
- KDD
- Kokusai Denshin Denwa Co.
- KDT
- Keyboard Display Terminal
- KERMIT
- Kl-10 Error-free Reciprocal Micro Interconnect over Tty =
lines
- KFT
- KiloFeeT
- KGB
- Komitet Gosudarstvennoi Bezopaznosti
- KHz
- Kilo HertZ (unit of frequency, 1000 cycles per second)
- KI
- Kiwanis International
- KI
- Kuenstliche Intelligenz
- KIA
- Killed In Action
- KIAS
- Knot Indicated Air Speed
- KIF
- Key Index File
- KIP
- Kinetics IP
- KIPS
- Kawasaki Integrated Power-valve System
- KISS
- Keep it simple, stupid
- KLIPS
- thousands of Logical Inferences Per Second
- KLOC
- thousands of Lines Of Code
- KO
- Knock Out
- KOWC
- Key Word Out of Context
- KP
- Key Pulse [telephony]
- KP
- Kitchen Police
- KPNO
- Kitt Peak National Observatory
- KPO
- KeyPunch Operator
- KQC
- King's College London
- KR
- Kernighan and Ritchie, the c programming language, =
"K&R"
- KS
- King's Scholar
- KSC
- Kennedy Space Center (NASA)
- KSF
- Key Success Factor
- KSH
- Korn SHell
- KSR
- Keyboard Send-Receive
- KSU
- Key System Unit [telephony]
- KTB
- Cretaceous-Tertiary Boundary (from German)
- KTS
- Key Telephone System [telephony]
- KTU
- Key Telephone Unit [telephony]
- KWIC
- Key Word In Context
- KY
- Kentucky
- L1
- Lagrange Point #1 35,000 Miles above moon [Space]
- L2
- Lagrange Point #2 40,000 Miles behind moon [Space]
- L3
- Lagrange Point #3 (?? 35,000 Miles below moon) [Space]
- L4
- Lagrange Point #4 240,000 mile Earth orbit [Space]
- L5
- Lagrange Point #5 240,000 mile Earth orbit [Space]
- LA
- Los Angeles
- LA
- Louisiana
- LA
- Low Altitude
- LAB
- Labor
- LAC
- Loop Assignment Center
- LADAR
- LAser Detection And Ranging
- LADT
- Local Access Data Transport
- LAIS
- Local Automatic Intercept System
- LAL
- Local Analog Loopback
- LAM
- Master of Liberal Arts
- LAMA
- Local Automatic Message Accounting [telephony]
- LAN
- Local Apparent Noon
- LAN
- Local Area Network
- LANCE
- Local Area Network Controller for Ethernet
- LANL
- Los Alamos National Laboratory
- LAP
- Link Access Procedure
- LAPB
- Link Access Procedure - Balanced (X.25)
- LAPD
- Link Access Procedure on the D channel
- LAPD
- Los Angeles Police Department
- LAPM
- Link Access Procedure for Modems
- LAR
- Local Acquisition Radar
- LARC
- Langley Research Center, "LaRC" [NASA]
- LASER
- Light Amplification by Stimulated Emission of =
Radiation
- LASS
- Local Area Signaling Service
- LAT
- Local Apparent Time
- LAT
- Local Area Transport (DEC)
- LATA
- Local Access Transport Area
- LATIS
- Loop Activity Tracking Information System
- LAVC
- Local Area VAX Cluster
- LAX
- Los Angeles International Airport
- LB
- Light Bomber
- LB
- pound (LiBra)
- LBHS
- Long Beach High School
- LBL
- Lawrence Berkeley Labs
- LBO
- Line Buildout
- LBS
- Load Balance System
- LBS
- Pounds
- LC
- Lower Case, "l.c."
- LC
- inductor-Capacitor circuit (as in filters, L is symbol=20
inductance)
- LCA
- Logic Cell Array
- LCAMOS
- Loop CAble Maintenance Operation System
- LCAO
- Linear Combination of Atomic Orbitals
- LCCIS
- Local Common Channel Interoffice Signaling
- LCCL
- Line Card CabLe
- LCCLN
- Line Card Cable Narrative
- LCD
- Liquid Crystal Display
- LCD
- Lowest Common Denominator
- LCDN
- Last Called Directory Number
- LCDR
- Lieutenant Commander
- LCIE
- Lightguide Cable Interconnection Equipment
- LCL
- Lunar Cargo Lander [NASA OEXP]
- LCLOC
- Line Card LOCation
- LCM
- Life Cycle Management
- LCN
- Logical Channel Numbers
- LCP
- Link Control Protocol
- LCR
- Least Cost Routing
- LCRMKR
- Line Card ReMarKs, Retained
- LCS
- Laboratory for Computer Science [MIT]
- LCSE
- Line Card Service and Equipment
- LCSEN
- Line Card Service and Equipment Narrative
- LCT
- Landing Craft Tanks
- LDC
- Logical Device Coordinates
- LDC
- Long Distance Carrier [telephony]
- LDEF
- Long Duration Exposure Facility
- LDF
- Large Deployable Reflector [Space]
- LDL
- Local Digital Loopback
- LDL
- Low Density Lipoprotein
- LDMTS
- Long Distance Message Telecommunications Service
- LDP
- Laboratory Data Products
- LDS
- The Church of Jesus Christ of Latter-Day Saints
- LDT
- Local Descriptor Table
- LDX
- Long Distance eXtender [telephony]
- LE
- Lance Ethernet
- LEAP
- Low-power Enhanced At Portable
- LEAS
- LATA Equal Access System
- LEC
- Local Exchange Carrier [telephony]
- LED
- Light-Emitting Diode
- LEGO
- Low End Graphics Option
- LEM
- Lunar Excursion Module (a.k.a. LM) (Apollo spacecraft)
- LENCL
- Line Equipment Number CLass
- LEO
- Low Earth Orbit [Space]
- LERC
- Lewis Research Center, "LeRC" [NASA]
- LEST
- Large Earth-based Solar Telescope
- LF
- Line Feed Character
- LF
- Line Finder
- LF
- Low Frequency (30-300KHz)
- LFACS
- Loop Facilties Assignment And Control System
- LFS
- Loopback File System
- LFSA
- List of Frequently Seen Acronyms
- LGA
- Low Gain Antenna
- LGB
- Lesbian/Gay/Bisexual
- LGB
- Long Beach CA
- LGBO
- Lesbian/Gay/Bisexual and any others we've missed, =
"LGBO*"
- LGM
- Little Green Men
- LH
- Left Hand
- LH
- Liquid Hydrogen (also LH2 or LHX)
- LH
- Lower Half
- LH
- Luteinizing Hormone (same as ISCH)
- LHD
- Litterarum Humaniorum Doctor (doctor of human letters)
- LHS
- Left Hand Side
- LI
- Long Island
- LIDAR
- LIght Detection And Ranging
- LIFIA
- Laboratoire d'Informatique Fondamentale et d'Intelligence=20
Artificielle
- LIFO
- Last In, First Out
- LIM
- Lotus-Intel-Microsoft (memory specification)
- LIMM
- Lotus Intel Microsoft Memory (PC world)
- LIMS
- Labor-Informations-Management-System
- LINC
- Laboratory INstrument Computer
- LIPS
- Logical Inferences Per Second
- LIS
- Lanthanide-Induced Shift
- LISA
- Large Installation System Administration
- LISP
- LISt Processing Language
- LIST
- List-Oriented Interactive Language
- LIU
- Line Interface Unit
- LJBF
- Let's Just Be Friends
- LL
- Late Latin
- LL
- Long Lines [telephony]
- LLAMA
- Logic Lacking A Meaningful Acronym
- LLB
- Legum Baccalaureus (bachelor of laws)
- LLC
- Logical Link Control
- LLCLINK
- Layer Control Protocol (?), "LLCLink"
- LLD
- Legum doctor (doctor of laws)
- LLN
- Line Link Network [telephony]
- LLNL
- Lawrence-Livermore National Laboratory
- LLO
- Low Lunar Orbit [Space]
- LLOX
- Lunar Liquid OXygen [Space]
- LLP
- Line Link Pulsing [telephony]
- LM
- Lan Manager
- LM
- Life Master (Contract Bridge ranking)
- LM
- Lunar Module (a.k.a. LEM) (Apollo spacecraft)
- LMC
- Large Magellanic Cloud (see SMC)
- LME
- Layer Management Entity
- LMF
- License Management Facility
- LMMS
- Local Message Metering System
- LMOS
- Line Maintenance Operations System [telephony, =
AT&T]
- LN2
- Liquid N2 (Nitrogen)
- LNG
- Liquified Natural Gas
- LO
- Lake Oswego
- LO
- Leverage Out
- LOA
- Lands of Adventure
- LOA
- Leave Of Absence
- LOB
- Line Of Balance
- LOB
- Line Of Building
- LOC
- Lines Of Code
- LOC
- Local Operating Company
- LOCAP
- LOw CAPacitance
- LOE
- Level Of Effort
- LOF
- Lock OFf-line
- LOFT
- Launch Operations Flight Test [Space]
- LOI
- Letter Of Intent
- LON
- Lock ON-line
- LOOPS
- Lisp Object Oriented Programming System
- LOP
- Lines Of Position
- LORAN
- Long RANge Navigation
- LOS
- Line Of Sight
- LOS
- Los Angeles
- LOSF
- Lunar Orbit Staging Facility [Space]
- LOTS
- Low Overhead Timesharing System
- LOX
- Liquid OXygen
- LP
- Linear Prediction
- LP
- Linear Programming
- LP
- Long Play(ing) (record)
- LP
- Low Pressure
- LPC
- Linear Predictive Coding (speech processing)
- LPCDF
- Low Profile Combined Distributing Frame
- LPDA
- Link Problem Determination Aid
- LPF
- League for Programming Freedom
- LPG
- Liquified Petroleum Gas
- LPG
- Low Pressure Gas
- LPL
- Lunar Personnel Lander [NASA OEXP]
- LPN
- Licensed Practical Nurse
- LPP
- Licensed Program Products
- LPR
- Line PrinteR
- LPT
- Line PrinTer
- LPT
- Lunar Propellant Tanker [NASA OEXP]
- LPV
- Lunar Piloted Vehicle [NASA OEXP]
- LQ
- Letter Quality
- LRAP
- Long Route Analysis Program
- LRB
- Liquid Rocket Booster [Space]
- LRBM
- Long Range Ballistic Missile
- LRC
- Longitudinal Redundancy Character
- LRS
- Line Repeater Station
- LRSP
- Long Range System Plan
- LRSS
- Long Range Switching Studies
- LRU
- Least Recently Used
- LRU
- Line Replaceable Unit
- LS
- Left Side
- LS
- Letter Signed
- LS
- Locus Sigilli (place of seal)
- LSAP
- Long Service Access Point
- LSB
- Least Significant Bit; Least Significant Byte
- LSB
- Lower Side Band
- LSC
- Lecture Series Committee [MIT]
- LSC
- LightSpeed C
- LSD
- Least Significant Digit
- LSD
- LySergic acid Diethylamide
- LSD
- pounds (Libra), shillings (Sestertii), and (old) pence=20
(Denarii)
- LSELLINK
- Layer Selector (?), "LSELLink"
- LSI
- Large Scale Integration
- LSP
- LightSpeed Pascal
- LSR
- Local Standard of Rest
- LSRP
- Local Switching Replacement Planning system
- LSS
- Life Support System
- LSS
- Loop Switching System
- LSSD
- Level-Sensitive Scan Detection
- LSV
- Line Status Verifier
- LT
- Long Ton
- LT
- Low Tension
- LTA
- Lighter Than Air
- LTAB
- Line Test Access Bus
- LTC
- Lieutenant Colonel
- LTC
- Local Test Cabinet
- LTD
- Local Test Desk
- LTF
- Lightwave Terminating Frame
- LTF
- Line Trunk Frame
- LTG
- Line Trunk Group
- LTJG
- Lieutenant Junior Grade
- LTL
- Less than Truckload Lot
- LTP
- Lunar Transient Phenomenon
- LTPD
- Lot Tolerance Percent Deffective
- LTS
- Loss Test Set
- LTV
- Loan To Value
- LTVR
- LTV Ratio
- LU
- Logical Unit
- LUG
- Local Users Group
- LUMO
- Lowest Unoccupied Molecular Orbital
- LUN
- Logical Unit Number
- LUT
- Look-Up Table
- LWM
- Low-Water Mark
- LWP
- Light Weight Process
- LWSP
- Linear White-SPace
- LWT
- Last Will and Testament
- LXE
- Lightguide eXpress Entry
- LZ
- Landing Zone
- M
- Miniatures
- MA
- Maintenance Administrator
- MA
- Massachusetts [US state postal designation]
- MAAP
- Maintenance And Administration Panel
- MAC
- Apple MACintosh computer
- MAC
- Mandatory Access Control
- MAC
- Media Access Control
- MAC
- Military Air Command
- MAC
- Move, Add, Change
- MAC
- Multiple Analogue Component
- MACBS
- Multi-Access Cable Billing System
- MACSYMA
- project MAC's SYmbolic MAnipulation System
- MAD
- Mass Air Delivery
- MAD
- Mutual Assured Destruction
- MADD
- Mothers Against Drunk Driving
- MADN
- Multiple Access Directory Numbers
- MAF
- Marine Abkuerzungs Fimmel (roughly navy abbreviation =
spleen?)
- MAG
- Magazine
- MAJOUR
- Modular Application for JOURnals
- MAN
- Metropolitan Area Network
- MAP
- Maintenance and Administration Position
- MAP
- Management Assesment Program
- MAP
- Manufacturing Automation Protocol (GM's Token-Passing=20
"Ethernet")
- MAP
- Marketing Assistance Program
- MAPSS
- Maintenance & Analysis Plan for Special Services
- MAPTOP
- Manufacturing Automation Protocol/Technical Office =
Protocol,=20
"MAP/TOP"
- MAR
- Microprogram Address Register
- MARBI
- MAchine Readable form of Bibliographic Information
- MARC
- MAchine Readable card Catalog
- MARC
- Market Analysis of Revenue and Customers system
- MARS
- Multiuser Archival and Retrieval System
- MAS
- MAin Store
- MAS
- Magic Angle Spinning
- MAS
- Mass Announcement System
- MASB
- MAS Bus
- MASC
- MAS Controller
- MASC
- Multiple Award Schedule Contract
- MASER
- Microwave Amplification by Stimulated Emission of =
Radiation
- MASH
- Mobile Army Surgical Hospital
- MASM
- MAS Memory
- MAST
- Multi-Application SOnar Trainer
- MATCALS
- Marine Air Traffic-Control And Landing System, =
"MAT-CALS"
- MATFAP
- Metropolitan Area Transmission Facility Analysys =
Program
- MAU
- Math Acceleration Unit
- MAU
- Media Access Unit
- MAU
- Medium Attachment Unit
- MAU
- Multiple Access Unit
- MAU
- Multistation Access Unit
- MAXI
- Modular Architecture for the Exchange of Information =
(DoD)
- MB
- Manned Base
- MB
- MegaByte (1MB=1048576 bytes)
- MBA
- Management Business Analyst
- MBA
- Master Business Administration
- MBBA
- p-MethoxyBenzylidene-p-n-ButylAniline
- MBO
- Management By Objectives
- MBPS
- MegaBits/Bytes Per Second
- MBWA
- Management By Walking Around
- MC
- Management Committee
- MC
- Master of Ceremonies
- MC
- Material Control
- MCA
- Mechanical Computer Aided Design
- MCA
- Micro Channel Architecture
- MCAD
- Mechanical Computer Aided Design
- MCAE
- Mechanical Computer Aided Engineering
- MCC
- Master Control Center
- MCC
- Master Control Console
- MCC
- Microelectronics & Computer Consortia (Austin =
based)
- MCC
- Mission Control Center
- MCCS
- Mechanized Calling Card Service
- MCH
- Maintenance CHannel
- MCHB
- Maintenance CHannel Buffer
- MCI
- Media Control Interface
- MCI
- Microwave Communications Incorporated
- MCIAS
- Multi-Channel Intelligent/Intercept Announcement =
System
- MCN
- Metropolitan Campus Network
- MCNC
- Microelectronics Center of North Carolina
- MCP
- Master Control Program
- MCP
- Multiport/Multiprotocol Communication Processor
- MCPAS
- Master Control Program/Advanced System, "MCP/AS"
- MCPO
- Master Chief Petty Officer
- MCR
- Memory ContRoller
- MCS
- Material Control System
- MCS
- Meeting Communications Service
- MCSV
- Mars Crew Sortie Vehicle [NASA OEXP]
- MCTRAP
- Mechanized Customer Trouble Report Analysis Plan
- MCU
- Microprocessor Control Unit
- MD
- Doctor of Medicine
- MD
- Management Domain
- MD
- Maryland [US state postal designation]
- MD
- Medical Doctor
- MD
- Months after Date
- MDACS
- Modular Digital Access Control System
- MDAS
- Magnetic Drum Auxiliary Sender
- MDC
- Marker Distributor Control
- MDC
- Meridian Digital Centrex
- MDDS
- Media Documentation Distribution Set
- MDE
- Modular Design Environment
- MDEC
- MAINDEC maintenance on DEC diagnostic paper tapes
- MDF
- Main Distribution Frame [telephony]
- MDI
- Medium Dependent Interface
- MDI
- Multiple Document Interface
- MDL
- Molecular Design Ltd. [Corporate name]
- MDQS
- Multi-Device Queueing System
- MDRE
- Mass Driver Reaction Engine [Space]
- MDS
- Multi-point Distribution Service
- MDT
- Mean Down Time
- MDU
- Marker Decoder Unit
- MDX
- Modular Digital eXchange
- ME
- Maine
- ME
- Mechanical Engineer
- MEA
- Minimum Enroute Altitude (IFR)
- MEC
- Mobile Equipment Console
- MECO
- Main Engine CutOff
- MED
- Master of EDucation, "MEd"
- MELD
- Mechanized Engineering and Layout for Distributing =
frames
- MEM
- 2-MethoxyEthoxyMethyl
- MEM
- Maximum Entropy Method
- MERP
- Middle-Earth Role Playing
- MERS
- Most Economic Route Selection
- MET
- Mid European Time
- MET
- Multibutton Electronic Telephone
- MF
- Medium Frequency (300-3000KHz)
- MF
- Middle French
- MF
- Multi-Frequency [telephony]
- MFA
- Master Fine Arts
- MFB
- Monochrome Frame Buffer
- MFENET
- Magnetic Fusion Energy NETwork
- MFG
- Manufacturing
- MFJ
- Modification of Final Judgement
- MFLOPS
- Million FLoating-point OPerations per Second
- MFM
- Modified Frequency Modulation
- MFR
- Multi-Frequency Receivers
- MFS
- Macintosh File System
- MFT
- Metallic Facility Terminal
- MFT
- Multiprogramming with a Fixed number of Tasks
- MG
- Machine Gun
- MG
- Major General
- MG
- MasterGroup
- MG
- Military Government
- MGH
- Massachusetts General Hospital
- MGM
- Metro-Goldwyn Mayer [Corporate name]
- MGT
- MasterGroup Translator
- MHD
- MagnetoHydroDynamics
- MHL
- Microprocessor Host Loader
- MHS
- Message Handling System (aka X.400)
- MHz
- MegaHertZ (unit of frequency, 1,000,000 cycles per =
second)
- MI
- Michigan
- MI
- Military Intelligence
- MI
- Mode Indicator
- MIA
- Missing In Action
- MIB
- Management Information Base
- MICE
- Modular Integrated Communications Environment
- MICR
- Magnetic Ink Character Recognition
- MIDI
- Musical Instrument Digital Interface
- MIF
- Maker Interchange Format
- MIFASS
- Marine Integrated Fire And Support System
- MIL
- Military
- MILNET
- MILitary NETwork
- MILSTD
- MILitary StandarD, "MIL-STD"
- MIM
- Media Interface Module
- MIM
- Metal Insulator Metal
- MIM
- Morality In Media
- MIMD
- Multiple Instruction, Multiple Data
- MIME
- Multipurpose Internet Mail Extensions
- MIN
- Mobile Identification Number
- MINCE
- MINCE Is Not Complete Emacs
- MINDO
- Modified Intermediate Neglect of Differential Overlap
- MINX
- Multimedia Information Network eXchange
- MIP
- Mortgage Insurance Premium
- MIPS
- Microprocessor without Interlocked Piped Stages
- MIPS
- Million Instructions Per Second
- MIPS
- Million of Instructions Per Second
- MIR
- Micro-Instruction Register
- MIR
- Peace, "mir" [Russian]
- MIRS
- Management Information Retrival System
- MIRV
- Multiple Independently-Targetable Reentry Vehicle
- MIS
- Management Information System
- MISCF
- MISCellaneous Frame
- MIT
- Massachusetts Institute of Technology
- MITI
- Ministry of International Trade and Industry
- MITS
- Microcomputer Interactive Test System
- MJ
- Modular Jack
- MKTG
- Marketing
- ML
- Middle Latin
- MLA
- Member of Legislative Assembly (see MPP)
- MLC
- MiniLine Card
- MLCD
- Multi-Line Call Detail
- MLD
- Minimum Lethal Dose
- MLEM
- Multi Language Environment
- MLL
- Mars Logistics Lander [NASA OEXP]
- MLO
- Material, Labor, Overhead - Inventoriable Cost / Full =
Cost
- MLS
- Microwave Landing System
- MLS
- MultiLevel Security
- MLS
- Multiple Listing Service
- MLT
- Mechanized Loop Testing
- MLV
- Medium Lift Vehicle [NASA OEXP]
- MM
- Maryknoll Missioners
- MMC
- Minicomputer Maintenance Center
- MMC
- Money Market Certificate
- MMDF
- Multi-channel Memo Distribution Facility
- MMES
- Martin Marietta Energy Systems
- MMFS
- Manufacturing Message Format Standard
- MMGT
- MultiMasterGroup Translator
- MMH
- MonoMethyl Hydrazine
- MMJ
- Modified Modular Jack
- MMM
- see 3M
- MMOC
- Minicomputer Maintenance Operations Center
- MMP
- Modified Modular Plug
- MMS
- Main Memory Status
- MMS
- Manufacturing Message Specification
- MMS
- Memory Management System
- MMT
- Multiple Mirror Telescope
- MMU
- Manned Maneuvering Unit [Space]
- MMU
- Memory Management Unit
- MMW
- Multi-Mega Watt [Space]
- MMX
- Mastergroup MultipleX
- MN
- Minnesota
- MNA
- Member of National Assembly (Quebec)
- MNDO
- Modified Neglect of Diatomic (differential) Overlap
- MNOS
- Metal-Nitride-Oxide Semiconductor
- MNP
- Microcom Networking Protocol
- MNRAS
- Monthly Notices of the Royal Astronomical Society
- MO
- Magneto-Optical
- MO
- Mail Order
- MO
- Medical Officer
- MO
- Missouri
- MO
- Modus Operandi
- MO
- Molecular Orbital
- MO
- Money Order
- MOA
- Military Operations Area
- MOC
- Mars Observer Camera (on Mars Observer)
- MOCA
- Minimum Obstacle Clearance Altitude (IFR)
- MOD
- Magneto-Optical Disk
- MOD
- Mesio Occlusal Distal (dental filling)
- MODEM
- MOdulator-DEModulator
- MOFW
- Men Of Few Words
- MOG
- Minicomputer Operations Group
- MOL
- Manned Orbiting Laboratory
- MOLA
- Mars Observer Laser Altimeter (on Mars Observer)
- MOM
- MethOxyMethyl
- MOMA
- Museum Of Modern Art
- MOMV
- Manned Orbital Maneuvering Vehicle [Space]
- MOP
- Maintenance Operations Protocol (DEC)
- MOPAC
- Molecular Orbital PACkage
- MOR
- Middle-Of-the-Road
- MOS
- Metal Oxide Semiconductor
- MOSFET
- Metal Oxide Semiconductor Field Effect Transistor
- MOTAS
- Member of the Appropriate Sex
- MOTIS
- Message-Oriented Text Interchange System
- MOTOS
- Member of the Opposite Sex
- MOTSS
- Member of the Same Sex
- MOTV
- Manned Orbital Transfer Vehicle [Space]
- MOU
- Memorandum Of Understanding
- MOUSE
- Minimum Orbital Unmanned Satellite of Earth
- MOV
- Metal Oxide Varistor
- MP
- Manifold Pressure
- MP
- Melting Point
- MP
- Member of Parliament
- MP
- Metal Particle
- MP
- Metropolitan Police
- MP
- Micro Processor
- MP
- Military Police(man)
- MP
- Mixed Projection
- MP
- Modular Plug
- MP
- MultiProcessing
- MP
- MultiProcessor
- MPC
- Minor Planets Circular
- MPC
- Multiprocess Communications
- MPCC
- Microprocessor Common Control
- MPCH
- Main Parallel CHannel
- MPDU
- Message Protocol Data Unit
- MPE
- Mission to Planet Earth [Space]
- MPG
- Miles Per Gallon
- MPH
- Miles Per Hour
- MPIF
- Multiprocessor Interface
- MPO
- Manufacturer's Point of Origin
- MPOW
- Multiple Purpose Operator Workstation
- MPP
- Member of Provincial Parliament (Canada; also MLA)
- MPP
- Message Posting Protocol
- MPP
- Message Processing Program
- MPP
- MicroProcessor Pascal
- MPPD
- Multi-Purpose Peripheral Device
- MPR
- Mars Pressurized Rover [Space]
- MPS
- Master Production Schedule
- MPS
- Megabytes Per Second
- MPT
- Ministry of Posts and Telecommunications
- MPT
- MultiPort Transceiver
- MPU
- MicroProcessor Unit
- MPV
- Mars Piloted Vehicle [NASA OEXP]
- MPW
- Macintosh Programmer's Workshop
- MQC
- Multiple-Quantum Coherence
- MQF
- Multiple-Quantum Filter
- MR
- Miniatures Rules
- MRD
- Marketing Requirements Document
- MRF
- Maintenance Reset Function
- MRFL
- Mandatory File and Record Locking
- MRI
- Magnetic Resonance Imaging
- MRP
- Manufacturing Requirements Planning
- MRP
- Manufacturing Resource Planning
- MRP
- Material Resource Planning
- MRS
- Material Reject Stock
- MRS
- Material Requirements Schedule
- MRSR
- Mars Rover and Sample Return
- MRSRM
- Mars Rover and Sample Return Mission
- MRTS
- Modification Request Tracking System
- MRU
- Most Recently Used
- MS
- Maintenance State
- MS
- ManuScript
- MS
- Mass Spectrometry
- MS
- Master of Science
- MS
- MicroSoft [Corporate name]
- MS
- Military Science
- MS
- MilliSecond
- MS
- Motor Ship
- MS
- Multiple Sclerosis
- MSB
- Most Significant Bit; Most Significant Byte
- MSC
- Media Stimulated Calling
- MSC
- MicroSoft C
- MSCDEX
- MicroSoft CD-rom EXtensions
- MSCP
- Mass Storage Control Protocol
- MSD
- Most Significant Digit
- MSDOS
- MicroSoft DOS, "MS-DOS", Maybe SomeDay an Operating =
System
- MSE
- Mobile Subscriber Equipment
- MSFC
- (George C.) Marshall Space Flight Center [NASA]
- MSFR
- Minimum Security Functionality Requirements
- MSG
- MonoSodium Glutamate
- MSH
- Marvel Super Heroes
- MSI
- Medium Scale Integration
- MSL
- Mean Sea Level
- MSL
- Motor Simulation Laboratory
- MSN
- Manufacturing Sequence Number
- MSN
- Manhattan Street Network, mesh architecture - =
wavelength-division=20
mux
- MSO
- Manufacturers Statement of Ownership
- MSP
- Mass Storage Pedestal
- MSPE
- Mercenaries, Spies & Private Eyes
- MSR
- Mess-, Steuer- und Regelungssysteme
- MSR
- Multitrack Serpentine Recording
- MSS
- Management Support System
- MSS
- ManuScriptS
- MSS
- Mass Storage Subsystem
- MSS
- Mass Storage System
- MSS
- Maximum Segment Size
- MST
- Mountain Standard Time
- MT
- Material Transfer
- MT
- Metric Ton
- MT
- Mountain Time
- MTA
- Mail Transfer Agent
- MTA
- Message Transfer Agent
- MTA
- Message Transfer Architecture (AT&T)
- MTA
- Metropolitan Transportation Authority
- MTBF
- Mean Time Between Failures
- MTBRP
- Mean-Time-Between-Parts-Replacement
- MTC
- Man Tended Capability
- MTD
- Month To Date
- MTF
- Master Test Frame
- MTF
- Modulation Transfer Function
- MTI
- Multi-Terminal Interface
- MTM
- Method Time Measurements
- MTP
- Message Transfer Part
- MTR
- Magnetic Tape Recording
- MTR
- Mechanized Time Reporting
- MTS
- Message Telecommunications Service
- MTS
- Message Telephone Service
- MTS
- Mobile Telephone Service
- MTSO
- Mobile Telephone Switching Office [telephony]
- MTTF
- Mean Time To Failure
- MTTFF
- Mean Time To First Failure
- MTTR
- Mean Time Trouble Repair
- MTTR
- Mean Time to Recovery/Repair
- MTU
- Maintenance Termination Unit
- MTU
- Maximum Transer Unit
- MTU
- Maximum Transmission Unit
- MTU
- Media Tech Unit
- MTV
- Music TeleVision
- MTX
- Mobile Telephone eXchange
- MU
- Message Unit
- MUA
- Mail User Agent
- MUF
- Maximum Usable Frequency (max freq during sunspot =
activity)
- MULDEM
- MULtiplexer-DEMultiplexer
- MULTICS
- MULTiplexed Information and Computing Service
- MUMPS
- Massachusetts general hospital Utility MultiProgramming =
System
- MUNG
- Mung Until No Good (see the hacker's dictionary)
- MUX
- MUltipleXor
- MV
- MicroVAX
- MVA
- Market Value Adjustment
- MVA
- MegaVolt Ampere
- MVP
- Multiline Variety Package
- MVS
- Multiple Virtual Storage
- MVSSP
- Multiple Virtual Storage / System Product, "MVS/SP"
- MVSXA
- Multiple Virtual Storage / Extended Architecture, =
"MVS/XA"
- MVY
- Martha's Vineyard MA
- MW
- MicroWave, "M/W"
- MW
- MultiWink
- MWM
- Motif Window Manager
- MX
- Mail eXchange
- MX
- Missile eXperimental
- MXU
- MultipleXer Unit
- MeV
- Million Electron Volts
- N
- North
- N
- Notice
- NA
- Narcotics Anonymous
- NA
- Next Address
- NA
- North America
- NA
- Not Applicable
- NAACP
- National Association for the Advancement of Colored =
People
- NAAS
- North American Automated Systems co.
- NAB
- National Association of Broadcasters
- NABISCO
- NAtional BIScuit COmpany [Corporate name]
- NAC
- Network Administration Center
- NACA
- National Advisory Committee on Aeronautics (became =
NASA)
- NACS
- National Advisory Committee on Semiconductors
- NAD
- Network Access Device
- NAD
- Nicotinamide Adenine Dinucleotide
- NADGE
- NATO Air Defense Ground Environment
- NAG
- Network Architecture Group
- NAG
- Numerical Algorithms Group
- NAGE
- National Association of Government Employees
- NAK
- Negative AcKnowledgement
- NAM
- Name and Address Module [telephony, cellular phone =
changeable=20
ROM]
- NAM
- National Account Manager [telephony, AT&T =
specific?]
- NAM
- Number Assignment Module [telephony, cellular phone =
changeable=20
ROM]
- NAMM
- North American Music Merchants
- NAN
- Not A Number
- NAND
- Inverted And Gate, Not And
- NAND
- Not-AND gate
- NANP
- North American Numbering Plan
- NAPAP
- National Acid Precipitation Assessment Program
- NAPLPS
- North American Presentation Layer Protocol Suite
- NAR
- National Association of Realtors
- NAR
- Nuclear Acoustic Resonance
- NARDAC
- NAvy Regional Data Automation Center
- NAS
- National Academy of Sciences
- NAS
- National Advanced Systems
- NAS
- National Aircraft (Aerospace) Standards
- NAS
- National Audubon Society
- NAS
- Network Application Support
- NAS
- Numerical Aerodynamic Simulation
- NAS
- Numerical and Atmospheric Sciences network
- NASA
- National Aeronautics and Space Administration
- NASAGSFC
- National Aeronautics and Space Administration Goddard =
Space Flight=20
Center, "NASA/GSFC"
- NASCAR
- National Association of Stock Car Auto Racing
- NASDA
- National Space Development Agency [Japan]
- NASDAQ
- National Association of Security Dealers Automated =
Quotations
- NASM
- National Air and Space Museum
- NASP
- National AeroSpace Plane
- NATO
- North Atlantic Treaty Organization
- NAU
- Network Addressable Unit
- NAVDAC
- NAVal Data Automation Command
- NAVSWC
- NAV Surface Warfare/Weapons Center
- NB
- New Brunswick
- NB
- Nota Bene
- NBA
- National Basketball Association
- NBC
- National Broadcasting Company
- NBFM
- NarrowBand Frequency Modulation
- NBO
- Network Build Out
- NBO
- Network Business Opportunity
- NBP
- Name Binding Protocol
- NBS
- National Bureau of Standards (renamed NIST) [U.S. =
Government]
- NBVM
- Narrow Band Voice Modulation
- NC
- Network Control
- NC
- No Charge
- NC
- No Connection
- NC
- North Carolina
- NCA
- Network Control Analysis
- NCAR
- National Center for Atmospheric Research
- NCC
- National Computer Conference
- NCC
- Network Control Center
- NCCF
- Network Communications Control Facility
- NCD
- Network Computing Devices
- NCDC
- National Climatic Data Center
- NCE
- New Catholic Edition
- NCGA
- National Computer Graphics Association
- NCIC
- National Cartographic Information Center
- NCIC
- National Crime Information Center
- NCMOS
- N-Channel (Silicon Gate Reversed) CMOS
- NCO
- Non-Commissioned Officer
- NCP
- Network Control Program/Protocol/Point
- NCR
- National Cash Register [Corporate name]
- NCS
- National Computer/Communications Systems
- NCS
- Network Computing System
- NCSA
- National Center for Supercomputing Applications
- NCSC
- National Computer Security Center
- NCSL
- National Computer Systems Laboratory (NIST)
- NCTE
- Network Channel-Terminating Equipment
- NCTL
- National Computer and Telecommunications Laboratory
- NCV
- No Commercial Value
- ND
- Network Disk (Sun)
- ND
- No Date
- ND
- North Dakota
- NDA
- Non-Disclosure Agreement
- NDB
- Non-Directional Beacon
- NDC
- Normalized Device Coordinates
- NDCC
- Network Data Collection Center
- NDDL
- Neutral Data Definition Language
- NDDO
- Neglect of Diatomic Differential Overlap
- NDE
- NeWS Development Environment
- NDEA
- National Defense Education Act
- NDI
- Network Design & Installation (Sun Service), =
"ND&I"
- NDIS
- Network Driver Interface Specification
- NDL
- Logical Network Disk
- NDL
- Network Database Language
- NDP
- New Democratic Party (Canada)
- NDSL
- National Direct Student Loan
- NDT
- Newfoundland Daylight Time
- NDV
- NASP Derived Vehicle
- NE
- New England
- NE
- Non Exempt
- NE
- North East
- NEAR
- National Electronic Accounting and Reporting system
- NEARNET
- New England Academic and Research network, "NEARnet"
- NEB
- New English Bible
- NEBS
- New Equipment-Building System
- NEC
- National Electric Code
- NEC
- National Electric Conference
- NEC
- Nippon Electric Company [Corporate name]
- NEFS
- Network extensible File System, "NeFS"
- NEI
- Not Elsewhere Included
- NEMA
- National Electrical Manufacturers Association
- NEMP
- Nuclear ElectroMagnetic Pulse
- NES
- National Energy Strategy
- NES
- Not Elsewhere Specified
- NESAC
- National Electronic Switching Assistance Center
- NESC
- National Energy Software Center
- NET
- NETwork
- NET
- National Educational Television
- NET
- New England Telephone
- NETBEUI
- NETBIOS Extended User Interface
- NETBIOS
- NETwork Basic Input Output System
- NETBLT
- NETwork Block Transfer
- NETCDF
- NETwork Common Data Format
- NEWS
- Networked Extensible Windowing System, "NeWS"
- NEWT
- NeWS Terminal, "NeWT"
- NEXRAD
- NEXt generation weather RADar
- NEXT
- Near-End cross-Talk
- NF
- No Funds
- NFC
- National Football Conference
- NFFE
- National Federation of Federal Employees
- NFL
- National Football League
- NFPA
- National Fire Protection Association
- NFR
- Not a Functional Requirement
- NFS
- Network File System
- NFT
- Network File Transfer
- NG
- National Guard
- NG
- No Good
- NGC
- New General Catalog
- NH
- New Hampshire
- NHI
- National Health Insurance
- NHL
- National Hockey League (the nation is Canada)
- NHLBI
- National Heart, Lung, and Blood Institute (Bethesda, =
MD)
- NHR
- Non Hierarchial Routing
- NI
- Network Interface
- NIC
- Network Information Center (ARPAnet)
- NIC
- Network Interface Card
- NICE
- Network Information and Control Exchange (DECNET)
- NICMOS
- Near Infrared Camera / Multi Object Spectrometer (HST =
upgrade)
- NIFTP
- (a file transfer network in the UK)
- NIH
- National Institutes of Health
- NIH
- Not Invented Here
- NIM
- Nuclear Instrumentation Module (an electronic instr. =
standard)
- NIMBY
- Not In My Back Yard
- NIMH
- National Institute of Mental Health (Rockville, MD)
- NIMS
- Near-Infrared Mapping Spectrometer (on Galileo)
- NIR
- Near InfraRed
- NIR
- Network Information Registry
- NIS
- Network Information Service (nee YP)
- NISC
- Network Information and Support Center (NYSERNet)
- NISDN
- narrowband integrated-services digital network, =
"N_ISDN"
- NISO
- National Information Standards Organization
- NISS
- National Information on Software and Services
- NIST
- National Institute of Standards and Technology (formerly =
NBS)
- NIU
- Network Interface Unit
- NJ
- New Jersey
- NKS
- Network Knowledge Server
- NL
- National League (baseball)
- NLDP
- National Launch Development Program
- NLM
- National Library of Medicine
- NLP
- Natural Language Processing
- NLQ
- Near Letter Quality
- NLRB
- National Labor Relations Board
- NLS
- Native Language Support
- NLS
- Network License Server
- NM
- Nautical Mile
- NM
- Network Module
- NM
- New Mexico
- NM
- Night Message
- NM
- No Mark; Not Marked
- NMA
- Network Management Architecture
- NMC
- Network Management Center
- NMI
- New Model Introduction
- NMI
- Non Maskable Interrupt
- NMOS
- N channel Metal Oxide Semiconductor (N-MOS) (see MOS)
- NMR
- Nuclear Magnetic Resonance
- NMS
- Network Management Station
- NNE
- North North East
- NNTP
- Net News Transfer Protocol
- NNTP
- Network News Transfer Protocol
- NNW
- North North West
- NNX
- Network Numbering eXchange
- NOAA
- National Oceanic and Atmospheric Administration
- NOAO
- National Optical Astronomy Observatories
- NOC
- Network Operations Center
- NOCS
- Network Operations Center System
- NOE
- Nuclear Overhauser Effect
- NOESY
- Nuclear Overhauser and Exchange SpectroscopY
- NOP
- No OPeration
- NORAD
- NORth American Defense command
- NORDO
- No-radio
- NORGEN
- Network Operations Report GENerator
- NORML
- National Organization for the Reform of Marijuana Laws
- NOS
- Network Operating System
- NOS
- Not Otherwise Specified
- NOSC
- Naval Ocean Systems Center
- NOTIS
- Network Operator Trouble Information System
- NP
- No Protest
- NP
- Nondeterministic-Polynomial
- NP
- Notary Public
- NP
- Noun Phrase
- NPA
- No Power Alarm
- NPA
- Numbering Plan Area, or area code [Telephony]
- NPC
- Non-Player Character (see PC)
- NPG
- New Product Group
- NPI
- New Product Introduction
- NPL
- National Physical Laboratory (UK)
- NPL
- Non-Procedural Language
- NPMS
- Named Pipes/Mail Slots
- NPN
- Negative-Positive-Negative (transistor)
- NPN
- NonProtein Nitrogen
- NPP
- Net Primary Productivity
- NPR
- National Public Radio
- NPRM
- Notice of Proposed Rulemaking
- NPSI
- Network Protocol Service Interface
- NPV
- Net Present Value
- NQ
- No Quote
- NQS
- Network Queuing System
- NRA
- National Rifle Association
- NRAO
- National Radio Astronomy Observatory
- NRC
- National Research Council
- NRC
- Nuclear Regulatory Commission
- NRDC
- Natural Resource Defense Council
- NRE
- Non-Recurring Engineering
- NREN
- National Research and Education Network
- NRL
- Naval Research Labs
- NRM
- Normal Response Mode
- NRO
- National Reconnaissance Office
- NROFF
- New ROFF
- NRZ
- Non-Return to Zero
- NRZI
- Non-Return to Zero Inverted (magnetic tape, 800 bpi)
- NS
- Name Server
- NS
- Network Services
- NS
- Neutron Star
- NS
- Not Specified
- NS
- Nova Scotia
- NS
- Nuclear Ship
- NSA
- National Security Agency [U.S. Government]
- NSAP
- Network Service Access Point
- NSC
- National Security Council [U.S. Government]
- NSC
- Network Service Center
- NSCS
- Network Service Center System
- NSDSSO
- NASA Science Data Systems Standards Office
- NSE
- Network Software Environment
- NSEC
- Network Switching Engineering Center
- NSEL
- Network Service Selector
- NSEM
- Network Software Environment
- NSF
- National Science Foundation [U.S. Government]
- NSFNET
- National Science Foundation NETwork
- NSO
- National Solar Observatory
- NSP
- Network Services Protocol (DECNET)
- NSPMP
- Network Switching Performance Measurement Plan
- NSSDC
- National Space Science Data Center
- NST
- Newfoundland Standard Time
- NSTS
- National Space Transportation System [Space]
- NSU
- Networking Support Utilities
- NSUG
- Nihon Sun User's Group
- NSW
- New South Wales (Australia)
- NSWC
- Naval Surface Warfare/Weapons (obsolete) Center
- NT
- Network Termination
- NT
- New Technology
- NT
- New Testament
- NT
- Newfoundland Time
- NT
- Northern Telecom
- NT
- Northern Territory
- NTEC
- Network Technical Equipment Center
- NTEU
- National Treasury Employees Union
- NTF
- No Trouble Found
- NTFS
- Windows NT File System
- NTIA
- National Telecommunications and Information Agency
- NTIS
- National Technical Information Service
- NTN
- Neutralized Twisted Nematic
- NTO
- Network Terminal Option
- NTP
- Network Time Protocol
- NTP
- Normal Temperature and Pressure (see STP)
- NTR
- Nuclear Thermal Rocket(ry)
- NTS
- Network Technical Support
- NTS
- Network Test System
- NTSB
- National Transportation Safety Board [U.S. Government]
- NTSC
- National Television Standards Committee; Never The Same =
Color
- NTT
- New Technology Telescope
- NTT
- Nippon Telephone & Telegraph
- NU
- Name Unknown
- NUA
- Network User Address
- NUI
- Network User Identification
- NURBS
- NonUniform Rational B-Spline
- NUSC
- Naval Underwater Systems Command
- NV
- Nevada
- NVH
- Noise, Vibration, Harshness
- NVLAP
- National Validation Laboratory Program
- NVRAM
- NonVolatile Random Access Memory
- NW
- North West
- NWA
- Northwest Airline
- NWS
- National Weather Service
- NWT
- North West Territories (Australia)
- NXX
- NANP syntax for a three-digit string, {[2-9],[0-9],[0-9]}=20
[Telephony]
- NY
- New York
- NYC
- New York City
- NYNEX
- New York, New England and the unknown (X)
- NYSE
- New York Stock Exchange
- NYSERNET
- New York State Educational and Research Network, =
"NYSERNet"
- NZ
- New Zealand
- NZUSUGI
- New Zealand Unix System User Group, Inc.
- O2
- Oxygen
- OA
- Office Automation
- OA
- Order Administration
- OA
- Overeaters Anonymous
- OACIS
- Oregon Advanced Computing InStitute
- OAK
- Oakland CA
- OAO
- Orbiting Astronomical Observatory
- OAS
- Organization of American States
- OASYS
- Office Automation SYStem
- OAT
- Outside Air Temperature
- OATS
- Office Automation Technology and Services
- OB
- Obligatory
- OBD
- Online Bugs Database (Sun)
- OBE
- Order of the British Empire
- OBO
- Or Best Offer
- OBS
- Omni Bearing Selector
- OBS
- Omnibearing Selector
- OC
- Operator Centralization
- OC
- Order of Canada
- OCATE
- Oregon Center for Advanced Technology Education
- OCC
- Office Communications Cabinet
- OCC
- Other Common Carrier
- OCDM
- Office of Civil Defense and Mobilization
- OCE
- Other Common carrier channel Equipment
- OCI
- Out of City Indicator
- OCLC
- Online Computer Library Center (Ohio College Library =
Catalog)
- OCLI
- Optical Coating Labs Inc.
- OCO
- Object Code Only
- OCR
- Optical Character Reader
- OCR
- Optical Character Recognition
- OCS
- Officer Candidate School
- OCST
- Office of Commercial Space Transportation
- OCU
- Office Channel Unit
- OD
- Doctor of Optometry
- OD
- Oculus Dexter (right eye)
- OD
- Officer of the Day
- OD
- Outer Diameter
- OD
- OverDose
- ODA
- Office Document Architecture
- ODAC
- Operations Distribution Administration Center
- ODD
- Operator Distance Dialing
- ODDD
- Operator Direct Distance Dialing
- ODI
- Optical Digital Image
- ODIF
- Office Document Interchange Format
- ODISS
- Optical Digital Image Storage System
- ODMR
- Optically Detected Magnetic Resonance
- ODP
- Open Distributed Processing
- ODS
- Overhead Data Stream
- OE
- Old English
- OE
- Order Entry
- OECD
- Organization for Economic Cooperation and Development
- OED
- Oxford English Dictionary
- OEM
- Original Equipment Manufacturer
- OEO
- Office of Economic Opportunity
- OES
- Order of the Eastern Star
- OEXP
- Office of Exploration [NASA]
- OF
- Old French
- OFM
- Order of Friars Minor
- OFNPS
- Outstate Facility Network Planning System
- OFS
- Order of Free State
- OG
- Original Gum
- OGI
- Oregon Graduate Institute
- OGICSE
- Oregon Graduate Institute Computer Science and =
Engineering
- OGT
- OutGoing Trunk
- OH
- Ohio
- OH
- OverHead
- OHP
- OverHead Projector
- OIRA
- Office of Information and Regulatory Affairs
- OIU
- Office Interface Unit
- OIW
- Workshop for Implementors of OSI
- OJT
- On-the-Job Training
- OLE
- Object Linking and Embedding
- OLIT
- Open Look Interface Toolkit
- OLTM
- Optical Line Terminating Multiplexer, "O-LTM"
- OLTP
- OnLine Transaction Processing
- OLWM
- OpenLook Window Manager
- OM
- Office Management
- OMA
- Optical Multichannel Analyzer
- OMB
- Office of Management and Budget
- OMD
- Orchestral Manouevers in the Dark
- OME
- Oregon Microcomputer Engineering (Intel)
- OMM
- Output Message Manual
- OMPF
- Operation and Maintenance Processor Frame
- OMS
- Orbital Maneuvering System
- OMV
- Orbital Maneuvering Vehicle [Space]
- ON
- Old Norse
- ONA
- Open Network Architecture
- ONAC
- Operations Network Administration Center
- ONAL
- Off Network Access Line
- ONC
- Open Network Computing
- ONE
- Open Network Environment
- ONI
- Office of Naval Intelligence
- ONI
- Operator Number Identification [telephony]
- ONP
- Optical Nuclear Polarization
- ONR
- Office of Naval Research
- OO
- Object Oriented
- OOB
- Out Of Band
- OODB
- Object Oriented Data Base
- OOP
- Object-Oriented Programming
- OOPART
- Out Of Place ARTifact
- OOPL
- Object-Oriented Programming Language
- OOPS
- Object Oriented Program Support
- OOPS
- Object-Oriented Programming System
- OOPSTAD
- Object Oriented Programming for Smalltalk Application =
Developers=20
Association
- OOSH
- Object-Oriented SHell
- OOT
- Object-Oriented Technology
- OP
- OFFICEPOWER office automation system, trademark of CCI
- OP
- Observation Post
- OP
- OfficePower office automation system, trademark of CCI
- OP
- Order of Preachers
- OP
- Out of Print
- OP
- Outside Plant
- OPC
- Originating Point Codes
- OPDU
- Operation Protocol Data Units
- OPEC
- Organization of Petroleum Exporting Countries
- OPEOS
- Outside Plant planning, Engineering & construction =
Operations=20
Sys
- OPF
- Orbiter Processing Facility
- OPM
- Office of Personnel Management
- OPM
- Outside Plant Module
- OPS
- Off-Premises Station
- OPSM
- Outside Plant Subscriber Module
- OPX
- Off-Premises eXtension
- OR
- Operating Room
- OR
- Operation Research
- OR
- Oregon
- OR
- Originating Register
- OR
- Owner's Risk, Own Risk
- ORB
- Office Repeater Bay
- ORD
- Optical Rotatory Dispersion
- ORDLIX
- Organized Design for Line and Crew System
- ORFEUS
- Orbiting and Retrievable Far and Extreme Ultraviolet=20
Spectrometer
- ORM
- Optical Remote Module
- ORNAME
- Originator / Recipient Name, "ORname"
- ORNL
- Oak Ridge National Laboratory
- OROM
- Optical Read Only Memory
- ORT
- Ongoing Reliability Test
- OS
- Oculus Sinister (left eye)
- OS
- Operating System
- OS
- Operator Service
- OS
- Ordinary Seaman
- OS
- Out of Stock
- OS
- OutState
- OS2
- Operating System/2, "OS/2"
- OSAC
- Operator Services Assistance Center
- OSB
- Order of St. Benedict
- OSC
- OSCillator
- OSC
- Operator Services Center
- OSC
- Orbital Sciences Corporation [Space]
- OSCAR
- Orbiting Satellite Carrying Amateur Radio
- OSCRL
- Operating System Command Response Language
- OSD
- Office of the Secretary of Defense
- OSDIT
- Office of Software Development and Information =
Technology
- OSDS
- Operating System for Distributed Switching
- OSE
- Open Software Environment
- OSF
- Open Software Foundation (Oppose Sun Forever)
- OSF
- Order of St. Francis
- OSHA
- Occupational Safety and Health Act
- OSI
- Open Systems Interconnection
- OSINET
- Open Systems Interconnection Network
- OSIRM
- Open Systems Interconnection/Reference Model, "OSI/RM"
- OSME
- Open Systems Message Exchange
- OSN
- Office Systems Node
- OSN
- Open Systems Network
- OSO
- Originating Signaling Office
- OSP
- Optical Storage Processor
- OSP
- OutSide Plant
- OSPF
- Open Shortest Path First
- OSPS
- Operator Service Position System
- OSS
- Office Support System
- OSS
- Office of Strategic Services (later CIA)
- OSS
- Operation Support System [telephony, AT&T?]
- OSS
- Operator Service System
- OSSA
- Office of Space Science and Applications
- OSSE
- Oriented Scintillation Spectrometer Experiment (on =
GRO)
- OSTP
- Office of Science and Technology Policy [White House]
- OT
- Old Testament
- OT
- OverTime
- OTA
- Office of Technology Assessment [U.S. government]
- OTA
- Optical Telescope Assembly (on HST)
- OTB
- Off-Track Betting
- OTBS
- One True Bracketing Style
- OTC
- Output Technology Corporation
- OTC
- Over The Counter (stocks)
- OTDR
- Optical TDR
- OTEC
- Ocean Thermal Energy Conversion
- OTF
- Open Token Foundation
- OTHB
- Over The Horizon - Backscatter (as in radar), "OTH-B"
- OTL
- Out To Lunch
- OTLF
- Open Taxi & Limousine Foundation, "OT&LF"
- OTM
- On Time Marker
- OTOH
- On The Other Hand
- OTR
- On The Rag
- OTS
- Off The Shelf
- OTS
- Office of Thrift Supervision
- OTS
- Officers' Training School
- OTV
- Orbital Transfer Vehicle [Space]
- OUTWATS
- OUTward Wide Area Telephone Service [telephony]
- OV
- Orbiter Vehicle [Space]
- OW
- Over-Write
- OWHN
- One-Word Host Name
- P
- (Chem.) para-, "p-"
- P
- (UK) pence, pennies, penny, "p"
- P
- page, "p."
- P
- per (as in m.p.h.), "p."
- P
- peta- (SI prefix)
- P
- phosphorus, "P"
- P
- pico- (SI prefix), "p"
- P2
- Interpersonal Messaging Protocol (for heading and =
body)
- P3
- Protocol used by UA Entities and MTA Entities
- P4
- The video interface bus on the 3/80
- PA
- Pennsylvania
- PA
- Per Annum
- PA
- Play Aid
- PA
- Power Alarm
- PA
- Power of Attorney
- PA
- Precision Architecture (HP)
- PA
- Press Agent
- PA
- Private Account
- PA
- Process Alert
- PA
- Program Address
- PA
- Public Address
- PA
- Purchasing Agent
- PA
- protactinium, "Pa"
- PAA
- P-AzoxyAnisole
- PABX
- Private Automatic Branch eXchange [telephony]
- PAC
- Privilege Attribute Certificate
- PACE
- Program for Arrangement of Cables and Equipment
- PACT
- Prefix Access Code Translator
- PACX
- Private Automatic Computer eXchange
- PAD
- Packet Assembler-Disassembler (for networking)
- PAD
- Public Access Device (networking)
- PADS
- PeroxylAmine DiSulfonate
- PAK
- Product Authorization Key
- PAL
- Personal Answer Line (Sun group)
- PAL
- Phase Alternation Line-rate
- PAL
- Programmable Array Logic
- PAM
- Payload Assist Module [Space]
- PAM
- Pulse Amplification Modulation
- PAM
- Pulse-Amplitude Modulation
- PAMD
- Payload Assist Module, Delta-class, "PAM-D"
- PAN
- Personal Account Number
- PANS
- Pretty Advanced New Stuff
- PAO
- Palo Alto CA
- PAP
- Printer Access Protocol
- PAR
- Peak-to-Average Ratio, "P/AR"
- PAR
- Precision Approach Radar
- PAR
- Project Authorization Request
- PARC
- Palo Alto Research Center, xerox
- PAS
- Public Announcement Service
- PAT
- Power Alarm Test
- PAT
- Profit After Tax
- PATROL
- Program for Administrative Traffic Reports On Line
- PAX
- Private Automatic eXchange
- PBC
- Peripheral Bus Computer
- PBC
- Processor Bus Controller
- PBD
- Pacific Bell Directory
- PBM
- Play By Mail game
- PBM
- Portable BitMap file format
- PBS
- Public Broadcasting System
- PBT
- Profit Before TAX
- PBX
- Private Branch eXchange [telephony]
- PC
- Peace Corps
- PC
- PerCent; PerCentage
- PC
- Personal Computer
- PC
- Piece of Crap
- PC
- Player Character (see NPC)
- PC
- Politically Correct
- PC
- Post Card
- PC
- Post Cibum (after meals)
- PC
- Primary Center
- PC
- Printed Circuit
- PC
- Privileged Character
- PC
- Privy Council
- PC
- Production Control
- PC
- Program Counter
- PC
- Progressive Conservative party (Canada)
- PCA
- Positive Controlled Airspace (above 18,000')
- PCA
- Printed-Circuit Assembly
- PCAT
- Personal Computer/Advanced Technology, "PC/AT"
- PCB
- PolyChlorinated Biphenyls
- PCB
- Printed Circuit Board
- PCB
- Process Control Block
- PCB
- Protocol Control Block (TCP)
- PCC
- Portable C Compiler
- PCDA
- Program Controlled Data Acquisition
- PCDOS
- Personal Computer DOS, "PC-DOS"
- PCF
- Portable Compiled Font
- PCH
- Parallel CHannel
- PCI
- Panel Call Indicator
- PCI
- Peripheral Components Interface
- PCI
- Protocol Control Information
- PCIE
- President's Council on Integrity and Efficiency
- PCILO
- Perturbational Configuration Interaction of Localized =
Orbitals
- PCL
- Printer Command Language
- PCL
- Programmable Command Language
- PCM
- Plug-Compatible Mainframe
- PCM
- Pulse-Code Modulation
- PCN
- Personal Communication Network
- PCNFS
- Personal Computer Network File System
- PCO
- Peg Count and Overflow
- PCO
- Process Change Order
- PCPC
- Personal Computers Peripheral Corporation
- PCS
- Patchable Control Store
- PCS
- Permanent Change of Station
- PCSA
- Personal Computer Systems Architecture
- PCTE
- Portable Common Tools Environment
- PCTS
- Posix Conformance Test Suite
- PCTV
- Program Controlled TransVerters
- PD
- Per Diem
- PD
- Peripheral Decoder
- PD
- Police Department
- PD
- Potential Difference
- PD
- Public Domain
- PDAD
- Proposed Draft ADdendum
- PDB
- Process DataBase
- PDE
- Partial Differential Equation
- PDES
- Product Data Exchange Specifications
- PDF
- Power Distribution Frame
- PDF
- Program Development Facility
- PDI
- Power and Data Interface
- PDIF
- Product Definition Interchange Format
- PDL
- Page Description Language
- PDL
- Page/Program Description/Design Language
- PDL
- Program Design Language
- PDN
- Public Data Network
- PDP
- Plasma Display Panel
- PDP
- Programmed Data Processor [DEC]
- PDQ
- Pretty Damned Quick
- PDS
- Portable Display Shell
- PDS
- Premises Distribution System (AT&T)
- PDS
- Public Domain Software
- PDSP
- Peripheral Data Storage Processor
- PDT
- Pacific Daylight Time
- PDU
- Product Development Unit
- PDU
- Protocol Data Unit
- PE
- Peripheral Equipment
- PE
- Phase Encoded (1600 bpi)
- PE
- Physical Education
- PE
- PolyEthylene
- PE
- Prince Edward island
- PE
- Printer's Error
- PE
- Professional Engineer
- PE
- Protestant Episcopal
- PECC
- Product Engineering Control Center
- PEDRI
- Proton-Electron Double-Resonance Imaging
- PEI
- Prince Edward Island
- PEM
- Privacy Enhanced Mail
- PEP
- Packetized Ensemble Protocol
- PEP
- Productivity Enhancement Project
- PEPE
- Pepe Est Presque Emacs
- PERFECT
- PERFormance Evaluation for Cost-Effective =
Transformations
- PERL
- Pathologically Eclectic Rubbish Lister
- PERL
- Practical Extraction and Report Language
- PERT
- Program Evalution and Review Technique
- PES
- PhotoElectron Spectroscopy
- PETA
- People for the Ethical Treatment of Animals
- PEX
- Phigs/phigs+ Extension to X
- PEXSI
- PEX Sample Implementation (gfx), "PEX-SI"
- PF
- Programmed Function
- PFB
- Printer Font Binary
- PFPU
- Processor Frame Power Unit
- PG
- Perge Notice
- PGA
- Pin Grid Array
- PGA
- Professional Graphics Adapter
- PGA
- Pure Grain Alcohol
- PH
- Parity High bit
- PH
- Potential of Hydrogen, "pH"
- PH
- Process Hold
- PHA
- Pulse Height Analyzer/Analysis
- PHIGS
- Programmer's Hierarchical Interactive Graphics System
- PHOTOCD
- PHOTOgraphic Compact Disk
- PHS
- Public Health Service
- PHYSREV
- Physical Review Journal, "PhysRev"
- PI
- Principal Investigator
- PI
- Protocol Interpreter
- PIA
- Plug-In Administrator
- PIC
- Pilot In Command
- PIC
- Plastic-Insulated Cable
- PIC
- Primary Independent Carrier
- PICS
- Plug-in Inventory Control System (PICS/DCPR)
- PID
- Process IDentifier
- PID
- Protocol IDentifier
- PIF
- Paid In Full
- PIF
- Program Information File
- PIMS
- Profit Impact of Marketing Strategy
- PIN
- Personal Identification Number
- PINE
- Pine Is Not Elm
- PING
- Packet InterNet Groper
- PIP
- Packet Interface Port
- PIP
- Periphal Interchange Program
- PIT
- Principal, Interest, and Taxes
- PITI
- Principal, Interest, Taxes, Insurance
- PIXEL
- PIcture ELement
- PL
- Parity Low bit
- PL1
- Programming Language One, "PL/1"
- PLA
- Programmable Logic Array
- PLAN
- Public Lands Action Network
- PLC
- Programmable Logic Controller
- PLCC
- Plastic Leaded Chip Carrier
- PLD
- Programmable Logic Device
- PLL
- Phase-Locked Loop
- PLM
- Programming Language for Microcomputers
- PLO
- Palestine Liberation Organization
- PLO
- Please Leave On
- PLS
- Physical Layer Signaling
- PLSS
- Portable Life Support System
- PLT
- Panduit Locking Tie
- PM
- PayMaster
- PM
- Peripheral Module
- PM
- Phase Modulation
- PM
- Plant Management
- PM
- Police Magistrate
- PM
- Post Meridiem (after noon)
- PM
- PostMaster
- PM
- PostMortem
- PM
- Presentation Manager
- PM
- Pressurized Module
- PM
- Preventive Maintenance
- PM
- Prime Minister
- PM
- Provost Marshal
- PMA
- Physical Medium Attachment
- PMAC
- Peripheral Module Access Controller
- PMC
- Permanently Manned Capability
- PMDF
- Pascal Memo Distribution Facility
- PMEG
- Page Map Entry Group
- PMG
- Page Map Group
- PMIRR
- Pressure Modulated InfraRed Radiometer (on Mars =
Observer)
- PMMU
- Paged Memory Management Unit
- PMO
- Prime Minister's Office
- PMOS
- P channel Metal Oxide Semiconductor (P-MOS) (see MOS)
- PMRC
- Parents' Music Resource Center
- PMT
- PhotoMultiplier Tube
- PMU
- Precision Measurement Unit
- PMX
- Presentation Manager for the X window system, "PM/X"
- PN
- Part Number
- PN
- Promissory Note
- PNB
- Pacific Northwest Bell
- PNP
- Plug N Play
- PNP
- Positive-Negative-Positive (transistor)
- PNPN
- Positive-Negative-Positive-Negative devices
- PO
- Petty Officer
- PO
- Post Office
- PO
- Postal Order
- PO
- Purchase Order
- POB
- Periphal Order Buffer
- POC
- Port Of Call
- POD
- Pay On Delivery
- POD
- Point Of Distribution
- POE
- Port Of Entry/Embarkation
- POF
- Programmable Operator Facility
- POGO
- Polar Orbiting Geophysical Observatory
- POH
- Pilot's Operating Handbook
- POK
- Power on Okey Signal
- POM
- Phase Of Moon
- POP
- Point Of Production
- POP
- Point of Presence [telephony]
- POP
- Post Office Protocol
- POP
- Processor On Plug-in (h/w)
- POPS
- Paperless Order Processing System
- POR
- Point Of Receive
- POR
- Price On Request
- POS
- Point Of Sale
- POS
- Programmable Option Set
- POSI
- Promoting conference for OSI
- POSIX
- Portable Operating System for unIX
- POST
- Power On Self Test
- POSYBL
- PrOgramming SYstem for distriButed appLications
- POTS
- Plain Old Telephone Service
- POTS
- Plain Ordinary Telephone System
- POTV
- Personnel Orbit Transfer Vehicle [Space]
- POV
- Point Of View
- POW
- Prisoner Of War
- POWER
- Performance Optimization With Enhanced Risc
- PP
- Painting Processor
- PP
- Parcel Post
- PP
- Past Participle
- PP
- Post Pay
- PP
- Primary Point
- PP
- Private Pilot
- PP
- pages, "pp."
- PPA
- Post Pack Audit
- PPB
- Parts Per Billion
- PPBS
- Planning, Programming, and Budgeting Systems
- PPC
- Pour Prendre Conge' (to take leave)
- PPCS
- Person to Person, Collect, Special [telephony]
- PPD
- Peripheral Pulse Distributor
- PPD
- PostScript Printer Description
- PPI
- Professional Press Inc.
- PPI
- Programmable Peripheral Interface
- PPM
- Page Per Minute
- PPM
- Parts Per Million
- PPM
- Portable PixMap file format
- PPM
- Product Portfolio Management
- PPN
- Parameterized Post-Newtonian formalism for general =
relativity
- PPN
- Project Programmer Number
- PPN
- Public Packet Switching
- PPP
- Point-to-Point Protocol
- PPS
- PostPostScriptum
- PPS
- Product Performance Surveys
- PPS
- ProduktionsPlanungs- und Steuerungssysteme
- PPS
- Public Packet Switching network
- PPT
- Parts Per Trillion
- PPT
- Pulse Pair Timing
- PPT
- Punched Paper Tape
- PQ
- Province of Quebec
- PR
- PayRoll
- PR
- Public Relations
- PR
- Puerto Rico
- PRC
- People's Republic of China
- PRC
- Planning Research Corporation
- PRCA
- Puerto Rico Communications Authority
- PREMIS
- PREMises Information System
- PREPNET
- Pennsylvania Research & Economic Partnership network,=20
"PREPnet"
- PRG
- PAL/PROM Programming Department
- PRI
- Primary Rate Interface
- PRISM
- Parallel Reduced Instruction Set Multiprocessing
- PRMD
- Private Management Domain
- PROFS
- PRofessional OFfice System
- PROLOG
- PROgramming in LOGic
- PROM
- Programmable Read-Only Memory
- PROMATS
- PROgrammable Magnetic Tape System
- PROPAL
- Programmed PAL
- PROTEL
- PRocedure Oriented Type Enforcing Language
- PROXYL
- tetramethyl-PyRrolidine-OXYL
- PRS
- Personal Response System
- PRTC
- Puerto Rico Telephone Company
- PS
- PicoSecond
- PS
- PostScript [Adobe (tm)]
- PS
- PostScriptum
- PS
- Power Steering
- PS
- Power Supply
- PS
- Process Stop Ship
- PS
- Program Store
- PS
- Public School
- PSA
- Problem Statement Analyzer
- PSAP
- Public Safety Answering Point
- PSC
- Pittsburgh Supercomputer Center
- PSC
- Polar Stratospheric Clouds
- PSC
- Prime Service Contractor
- PSC
- Public Safety Calling system
- PSC
- Public Service Commission
- PSDC
- Public Switched Digital Capability
- PSDN
- Packet-Switched Data Network
- PSDS
- Public Switched Digital Service
- PSDS
- Public Switched Digital Service [telephony, AT&T?]
- PSE
- Packet Switch Exchange
- PSE
- Programming Support Environment
- PSF
- Point Spread Function
- PSG
- Platoon SerGeant
- PSG
- Professional Service Group (Sun group)
- PSI
- Packet Switch Interface
- PSI
- Packetnet System Interface
- PSIU
- Packet Switch Interface Unit
- PSK
- Phase-Shift Keying
- PSL
- Problem Statement Language
- PSM
- Packet Service Module
- PSM
- Position Switching Module
- PSM
- Professional Service Manager
- PSN
- Packet Switch Node
- PSN
- Packet Switched Network
- PSN
- Packet Switching Node
- PSO
- Pending Service Order
- PSP
- Product Support Plan
- PSP
- Program Segment Prefix
- PSR
- Product Specific Realizations
- PSR
- Product Specific Release
- PSR
- PulSaR
- PSS
- Packet Switch Stream
- PSS
- Packet Switched Services
- PST
- Pacific Standard Time
- PSTN
- Public Switched Telephone Network
- PSU
- Program Storage Unit
- PSW
- Program Status Word
- PSWM
- PostScript Window Manager
- PT
- Pacific Time
- PT
- Patrol Torpedo (as in PT boat)
- PT
- Physical Therapy
- PT
- Physical Training
- PT
- Program Timer
- PTA
- Parent-Teacher Association
- PTAT
- Private Trans Atlantic Telecommunications
- PTD
- Parallel Transfer Disk/Drive
- PTE
- Page Table Entry
- PTI
- Portable Test Instrument
- PTN
- Plant Test Number [telephony:actual number assigned for =
800=20
service]
- PTO
- Patent and Trademark Office
- PTO
- Please Turn Over
- PTO
- Power Take-Off
- PTP
- Point To Point
- PTSD
- Post Traumatic-Stress Disorder
- PTT
- Post, Telephone and Telegraph administration
- PTT
- Postal, Telephone, and Telegraph administration
- PTV
- Passenger Transport Vehicle [Space]
- PTW
- Primary Translation Word
- PTY
- Pseudo-Terminal driver
- PU
- Physical Unit
- PUC
- Peripheral Unit Controller
- PUC
- Public Utilities Commission
- PUD
- Planned Unit Development
- PUP
- PARC Universal Packet protocol
- PV
- PhotoVoltaic
- PVC
- Permanent Virtual Circuits
- PVC
- PolyVinylChloride
- PVN
- Private Virtual Network
- PVO
- Pioneer Venus Orbiter
- PVT
- Private (pilot certificate)
- PW
- Prisoner of War (usually POW)
- PWB
- Printed Wiring Board
- PWB
- Programmers Work Bench
- PWD
- Print Working Directory
- PWG
- Permanent Working Group
- PX
- Post eXchange (see also BX)
- Pa
- Pascal
- Q
- Queen('s), "Q."
- Q
- question, "Q."
- QA
- Quality Assurance
- QAM
- Quadrature Amplitude Modulation
- QAS
- Quasi-Associated Signaling
- QB
- queen's bishop (chess)
- QBE
- Query By Example
- QBP
- queen's bishop's pawn (chess)
- QC
- Quality Control
- QC
- Queen's Counsel
- QCPE
- Quantum Chemistry Program Exchange
- QD
- Quaque Die (daily)
- QDA
- Quantity Discount Agreement
- QDCS
- Quality, Deliverly, Cost, Service / Safety
- QE
- Quick Estimation
- QED
- Quantum ElectroDynamics
- QED
- Quod Erat Demonstrandum (which was to be demonstrated)
- QEF
- Quod Erat Faciendum (which was to be done)
- QEI
- Quod Erat Inveniendum (which was to be found out)
- QET
- Quantum Effect Transistor
- QIC
- Quarter-Inch Cartridge
- QID
- Quater In Die (four times a day)
- QIS
- Quality Information System
- QKt
- queen's knight (chess)
- QKtP
- queen's knights's pawn (chess)
- QLI
- Query Language Interpreter
- QM
- QuarterMaster
- QMC
- QuarterMaster Corps
- QMF
- Query Management Facility
- QMG
- QuarterMaster General
- QMP
- Quality Measurement Plan
- QMS
- Quality Micro Systems
- QNS
- Quantity Not Sufficient
- QQV
- which see (plural of q.v.), "qq.v."
- QRA
- Quality Reliability Assurance
- QRSS
- Quasi Random Signal Source
- QSO
- Quasi-Stellar Object
- QSS
- Quality Surveillance System
- QTC
- Quantitative Technology Corporation
- QTY
- Quantity
- QUANGO
- QUAsi Non-Governmental Organization
- QUANTAS
- QUeensland And Northern Territory Aerial Service, =
"Quantas"
- QUANTAS
- Quantas Empire Airways
- QUEL
- QUEry Language
- QV
- which see (sing.), "q.v."
- QWERTY
- first six keys from left on top alphabetic row of standard =
keyboard
- QWL
- Quality of Working Life
- R
- Republican, "R."
- R
- Ring
- R
- Rolemaster
- R
- rand
- R
- recto, "r."
- R
- right, "r"
- R
- roentgen
- R
- rook in chess
- RA
- Regular Army
- RA
- Research Assistant
- RA
- Return Authorization
- RA
- Royal Academy
- RA
- radium, "Ra"
- RAAF
- Royal Australian Air Force
- RACE
- Random Access Card Equipment
- RACEP
- Random Access and Correlation for Extended Performance =
- RAD
- Radiation Absorbed Dose
- RAD
- Rapid Access Disk
- RADAR
- RAdio Detection And Ranging
- RADAR
- Radio Association Defending Airwave Rights (radar detector =
makers)
- RADM
- Rear ADMiral
- RAF
- Royal Air Force
- RAID
- Redundant Arrays of Inexpensive Disks
- RAM
- Random-Access Memory
- RAMP
- Ratings And Maintenance Phase
- RAND
- Rural Area Network Design
- RAO
- Regional Accounting Office
- RAO
- Revenue Accounting Office
- RAR
- Return Address Register
- RARDE
- Royal Armaments Research and Development Establishment
- RARE
- European Association of Research Networks
- RARE
- Reseaux Associes pour la Recherche Europeenne
- RARP
- Reverse Address Resolution Protocol =
(Ethernet->Internet)
- RAS
- Reliability, Availability, and Serviceability
- RASC
- Residence Account Service Center
- RATFOR
- RATional FORtran
- RB
- Rhythm and Blues, "R&B"
- RBC
- Red Blood Count
- RBHC
- Regional Bell Holding Company
- RBI
- Runs Batted In
- RBOC
- Regional Bell Operating Company
- RBOR
- Request Basic Output Report
- RBT
- Reliable Broadcast Toolkit
- RBTL
- Read Between The Lines
- RC
- Receive Clock
- RC
- Red Cross
- RC
- Regional Center
- RC
- Repair Center (Sun)
- RC
- Resistance-Capacitance
- RC
- Resistor-Capacitor circuit (as in filters)
- RC
- Roman Catholic
- RC
- Run Commands
- RCA
- Radio Corporation of America
- RCAF
- Royal Canadian Air Force
- RCAS
- Reserve Component Automation System
- RCC
- Radio Common Carrier
- RCC
- Remote Cluster Controller
- RCC
- Reverse Command Channel
- RCF
- Remote Call Forwarding
- RCI
- Rodent Cage Interface (for SLS mission)
- RCL
- Runtime Control Library
- RCLDN
- Retrieval of Calling Line Directory Number
- RCM
- Remote Carrier Module
- RCMAC
- Recent Change Memory Administration Center
- RCMP
- Royal Canadian Mounted Police
- RCP
- Remote CoPy
- RCS
- Reaction Control System
- RCS
- Revision Control System
- RCSC
- Remote Spooling Communications Subsystem
- RCT
- Relayed Coherence Transfer
- RCU
- Radio Channel Unit
- RCVR
- ReCeiVeR
- RD
- Received Data
- RD
- Research and Development, "R&D"
- RD
- Rural Delivery
- RDA
- Remote Data Access
- RDBMS
- Relational DataBase Management System
- RDES
- Remote Data Entry System
- RDF
- Radio Direction Finding
- RDL
- Remote Digital Loopback
- RDM
- Reliably-Delivered Message (sockets)
- RDP
- Reliable Datagram Protocol
- RDS
- Radio Digital System
- RDT
- Radio Digital Terminal
- REA
- Rail Express Agency
- REC
- Regional Engineering Center
- RECON
- Reconnaissance
- REGIS
- REmote Graphics Instruction Set
- REM
- Rapid Eye Movement
- REM
- Rat Enclosure Module (for SLS mission)
- REM
- Rational Economic Man
- REM
- Remote Equipment Module
- REM
- Ring Error Monitor
- REM
- Roentgen Equivalent in Man
- REMOBS
- REMote OBservation System
- REN
- Ring Equivalence Number
- REO
- R. E. Olds
- REO
- Removable, Erasable, Optical
- REQSPEC
- REQuirements SPECification
- RETMA
- Radio Electronics Television Manufacturers Association =
(rack=20
spacing)
- REX
- Raster Engine
- REX
- Remote EXecution
- REXX
- Restructured EXtended eXecutor
- RF
- Radio Frequency
- RFC
- Request For Comments [Internet]
- RFD
- Rural Free Delivery
- RFE
- Request For Enhancement
- RFI
- Radio Frequency Interference
- RFP
- Request For Proposals
- RFQ
- Request For Quotes
- RFS
- Remote File Sharing
- RFS
- Remote File System
- RFT
- Request For Technology
- RGB
- Red Green Blue
- RGBI
- Red Green Blue Intensity
- RGP
- Raster Graphics Processor
- RGU
- Radio Government/Universal, "RG/U"
- RH
- Right Hand
- RHC
- Regional (Bell) Holding Company
- RHF
- Restricted Hartree-Fock
- RHS
- Right Hand Side
- RHV
- Reid-Hillview Intergalactic, San Jose CA
- RI
- Receiving & Inspection, "R&I"
- RI
- Rhode Island
- RI
- Ring Indicator
- RIACS
- Research Institute for Advanced Computer Science (at NASA=20
Ames)
- RIAS
- Radio In the American Sector, berlin
- RID
- Remote Isolation Device
- RIF
- Reading Is Fundamental
- RIF
- Reduction In Force
- RIFF
- Resource Interchange File Format
- RILM
- Repertoire International de Literature Musicale
- RIP
- Raster Image Processor
- RIP
- Rest In Peace/Requiescat In Pace
- RIP
- Routing Information Protocol
- RIPE
- Reseaux IP Europeenne
- RIPS
- Raster Image Processing Systems Corp.
- RISC
- Reduced Instruction Set Computer
- RISC
- Relegate Important Stuff to the Compiler
- RISLU
- Remote Integrated Services Line Unit
- RIT
- Rochester Institute of Technology
- RITA
- Recognition of Information Technology Achievement =
award
- RJE
- Remote Job Entry [IBM]
- RLC
- Resistor Inductor Capacitor
- RLCM
- Remote Line Concentrating Module
- RLDS
- The Re-organized Church of Latter-Day Saints
- RLG
- Research Libraries Group
- RLIN
- Research Libraries Information Network [run by RLG =
(q.v.)]
- RLL
- Run Length Limited
- RLOGIN
- Remote Login, "rlogin"
- RLT
- Remote Line Test
- RM
- Record Marking
- RM
- Regional Manager
- RMA
- Return Materials Authorization
- RMAS
- Remote Memory Administration System
- RMATS
- Remote Maintenance Admisistration and Traffic System=20
[telephony]
- RMF
- Read Me First
- RMI
- Radio Magnetic Indicator
- RMR
- Remote Message Registers
- RMR
- Return Material Receipt
- RMS
- Record Management System
- RMS
- Remote Manipulator System [Space]
- RMS
- Richard M. Stallman
- RMS
- Root Mean Square
- RMS
- Royal Mail Ship
- RN
- Reference Noise
- RN
- Registered Nurse
- RN
- Royal Navy
- RNA
- RiboNucleic Acid
- RNGC
- Revised New General Catalog
- RNOC
- Regional Network Operations Center
- RNR
- Receive Not Ready
- RNZAF
- Royal New Zealand Air Force
- RO
- Read/Only, "R/O"
- RO
- Receive Only
- ROA
- Return On Assets
- ROB
- Remote Order Buffer
- ROC
- Regional Operating Company
- ROE
- Rate Of Exchange
- ROE
- Return On Equity
- ROFF
- Run-OFF
- ROG
- Receipt Of Goods
- ROH
- Receiver Off Hook
- ROI
- Region Of Interest
- ROI
- Return On Investment
- ROM
- Range Of Motion (medical)
- ROM
- Read-Only Memory
- ROM
- Rupture Of Membrane (as in birth)
- RONA
- Return on Net Assets
- RONABIT
- Return On Asset Before Income Tax
- ROSAT
- ROentgen SATellite
- ROSE
- Remote Operations Service Element
- ROTC
- Reserve Officers' Training Corps
- ROTL
- Remote Office Test Line
- ROTS
- Rotary Out Trunks Selectors
- ROUS
- Rodents Of Unusual Size
- ROW
- Rest Of the World
- ROYGBIV
- Red, Orange, Yellow, Green, Blue, Indigo, Violet, "Roy G. =
Biv"
- RP
- Rolling Plan
- RPC
- Remote Procedure Call
- RPG
- RePort Generator
- RPG
- Role Playing Game
- RPI
- Rolling Plan Indices
- RPM
- Remote Process Management
- RPM
- Removable Peripheral Module
- RPM
- Resales Price Maintenance
- RPM
- Revolutions Per Minute
- RPN
- Reverse Polish Notation
- RPO
- Railway Post Office
- RPS
- Revolutions Per Second
- RPS
- Rotational Positional Sensing (disks)
- RPV
- Remotely Piloted Vehicle
- RQ
- RuneQuest
- RQS
- Rate/Quote System
- RQSM
- Regional Quality Service Management
- RR
- RailRoad
- RR
- Rate & Route, "R&R"
- RR
- Receive Ready
- RR
- Resource Record
- RR
- Route Relay
- RR
- Rural Route
- RRIP
- Rock Ridge Interchange Protocol
- RRO
- Rate and Route Operator [telephony]
- RRO
- Reports Receiving Office
- RS
- RISC System
- RS
- Recommended Standard
- RS
- Recording Secretary
- RS
- Revised Status
- RS
- Right Side
- RS
- Royal Society
- RS232
- Digital Communication Standard, "RS-232"
- RSA
- Repair Service Attendant
- RSB
- Repair Service Bureau
- RSC
- Remote Switching Center
- RSC
- Residence Service Center
- RSCS
- Remote Source Control System
- RSCS
- Remote Spooling and Communication Subsystem
- RSE
- Research & Systems Engineering, "R&SE"
- RSFSR
- Russian Soviet Federated Socialist Republic
- RSH
- Remote/Restricted SHell
- RSLE
- Remote Subscriber Line Equipment
- RSLM
- Remote Subscriber Line Module
- RSM
- Remote Switching Module
- RSN
- Real Soon Now
- RSS
- Remote Switching System
- RSTS
- Resource System Time Sharing
- RSTSE
- Resource System Time Sharing/Enhanced, "RSTS/E"
- RSU
- Remote Switching Unit
- RSV
- Revised Standard Edition
- RSVP
- Repondez S'il Vous Plait (please reply)
- RSWC
- Right Side up With Care
- RT
- RadioTelephone
- RT
- RealTime
- RT
- Risc Technology [IBM]
- RTA
- Remote Trunk Arrangement
- RTAC
- Regional Technical Assistance Center [telephony]
- RTC
- Right To Copy
- RTF
- Read This First
- RTF
- Rich Text Format
- RTFM
- Read The F***ing Manual
- RTG
- Radioisotope Thermoelectric Generator
- RTL
- Resistor-Transistor Logic
- RTL
- Run-Time Library
- RTLS
- Return To Launch Site (Shuttle abort plan)
- RTM
- Regional Telecommunications Management
- RTM
- Remote Test Module
- RTMP
- Routing Table Maintenance Protocol
- RTR
- Reel-To-Reel
- RTS
- Ready To Send
- RTS
- Real Time Systems (lll-csrg)
- RTS
- Reliable Transfer Service
- RTS
- Remote Testing System
- RTS
- Return To Stock
- RTSE
- Reliable Transfer Service Element
- RTSL
- Read The Source Luke
- RTT
- Round Trip Time
- RTTY
- Radio Teletype
- RTU
- Real Time Unix
- RTU
- Remote Trunking Unit
- RTU
- Right To Use
- RU
- Receive Unit
- RUM
- Remote User Multiplex
- RW
- Read/Write
- RW
- Read/Write, "R/W"
- RW
- Right Worshipful
- RW
- Right Worthy
- RWC
- Remote Work Center
- RWE
- Remote Wall Enclosure
- RWM
- Read/Write Memory, "R/WM"
- RX
- Remote eXchange
- S
- Siemens
- S
- Sleeve
- S
- South
- S
- Supplement
- S
- second (SI abbrev.), "s"
- S
- sulphur
- SA
- Salvation Army
- SA
- Seaman Apprentice
- SA
- Service Assistant
- SA
- Sex Appeal
- SA
- Sine Anno (without date)
- SA
- South Africa
- SA
- South America
- SA
- South Australia
- SA
- Subject to Approval
- SAA
- South Atlantic Anomaly
- SAA
- Systems Application Architecture (IBM)
- SAAB
- Svenska Aeroplan AktieBolaget (Swedish Aircraft =
Corporation)
- SABME
- Set Asynchronous Balanced Mode Extended
- SABRE
- Semi-Automated Business Research Environment
- SAC
- Service Area Code
- SAC
- Strategic Air Command [US military]
- SACK
- Selective ACK
- SADD
- Students Against Drunk Driving
- SAE
- Society of Automotive Engineers
- SAG
- Street Address Guide
- SAGA
- Solar Array Gain Augmentation (for HST)
- SAI
- Serving Area Interface
- SAIC
- Science Applications International Corporation
- SAKDC
- Swiss Army Knife Data Compression
- SALI
- Standalone Automatic Location Identification
- SALT
- Strategic Arms Limitting Talks
- SAM
- Surface-to-Air Missile
- SAMA
- Step-by-step Automatic Message Accounting [telephony]
- SAMPEX
- Solar Anomalous and Magnetospheric Particle EXplorer
- SAMTO
- Space And Missile Test Organization
- SAO
- Smithsonian Astrophysical Observatory
- SAP
- Second Audio Program
- SAP
- Service Access Point
- SAR
- Search And Rescue
- SAR
- Store Address Register
- SAR
- Synthetic Aperture Radar
- SARA
- Satellite pour Astronomie Radio Amateur
- SAREX
- Search and Rescue Exercise
- SAREX
- Shuttle Amateur Radio Experiment
- SARTS
- Switched Access Remote Test System
- SAS
- Single Attach Station
- SAS
- Southern All Stars
- SAS
- Space Activity Suit
- SAS
- Space Adaptation Syndrome
- SAS
- Statistical Analysis Software?
- SASE
- Self-Addressed Stamped Envelope
- SASE
- Specific Application Service Element
- SASI
- Shugart Associates Systems Interface
- SAT
- Satellite [Space]
- SAT
- Scholastic Aptitude Test
- SAT
- Special Access Termination
- SAT
- Supervisory Audio Tone
- SAT
- Synthetic Aperture Telescope
- SAW
- Surface Acoustic Wave
- SBA
- Small Business Administration
- SBC
- Single Board Computer
- SBMS
- Southwestern Bell Mobile Service
- SBS
- Skyline Business Systems
- SBU
- Strategic Business Unit
- SBUS
- School Bus, "S-Bus"
- SBWR
- Simplified Boiling Water Reactor
- SC
- Scanner Controller
- SC
- Secondary Channel
- SC
- Sectional Center
- SC
- Skull & Crossbones, "S&C"
- SC
- South Carolina
- SC
- SpaceCraft, "S/C"
- SC
- SubCommittee
- SCA
- Shuttle Carrier Aircraft
- SCA
- Sunlink Channel Adapter
- SCAD
- Subsonic Cruise Armed Decoy
- SCADA
- Supervisory Control And Data Acquisition
- SCADC
- Standard Central Air Data Computer
- SCAME
- SCreen oriented Anti-Misery Editor
- SCAMP
- Single-Chip A-series Mainframe Processor
- SCAN
- Switched Circuit Automatic Network
- SCAT
- Stromberg-Carlson Assistance Team
- SCB
- System Control Block
- SCC
- Serial Communication Controller
- SCC
- Specialized Common Carrier
- SCC
- Switching Control Center (or Specialized Common Carriers) =
- SCCA
- Sports Car Club of America
- SCCS
- Source Code Control System
- SCCS
- Specialized Common Carrier Service
- SCCS
- Switching Control Center System
- SCE
- Signal Conversion Equipment
- SCE
- Structure Chart Editor
- SCED
- SCSI/Ethernet/Diagnostics (Sequent board)
- SCF
- Selective Call Forwarding
- SCF
- Self Consistent Field
- SCI
- SpaceCraft Incorporated
- SCIFI
- SCIence FIction, "sci-fi"
- SCM
- Software Configuration Management
- SCM
- Subscriber Carrier Module
- SCMS
- Serial Copy Management System
- SCO
- Santa Cruz Operation
- SCO
- Serving Central Office
- SCOOPS
- SCheme Object Oriented Programming System
- SCOT
- Stepper Central Office Tester
- SCOTS
- Surveilance and Control Of Transmission Systems
- SCP
- Signal Control Point
- SCP
- Signal Conversion Point
- SCP
- Sunlink Communications Processor
- SCP
- System Control Program
- SCPC
- Signal Channel Per Carrier
- SCPD
- Supplementary Central Pulse Distributor
- SCPI
- Standard Commands for Programmable Instrumentation
- SCRAM
- Static Column RAM (h/w)
- SCS
- Silicon Controlled Switch
- SCSA
- Sun Common SCSI Architecture
- SCSI
- Small Computer System Interface (pronounced scuzzi)
- SCT
- Schmidt-Cassegrain Telescope
- SCTS
- Secondary Clear To Send
- SCU
- Selector Control Unit
- SCUBA
- Self Contained Underwater Breathing Apparatus
- SCUD
- Subsonic Cruise Unarmed Decoy
- SCX
- Specialized Communications eXchange
- SD
- SCSI Disk
- SD
- South Dakota
- SDA
- Send Data With Immediated Ackonwledge
- SDA
- Swappable Data Area
- SDB
- Safety Deposit Box
- SDCD
- Secondary Data Carrier Detect
- SDD
- Specific Development & Design, "SD&D"
- SDF
- Secondary Distribution Frame
- SDF
- Standard Data Format
- SDF
- SubDistribution Frame
- SDH
- Synchronous Digital Hierarchy (synchronous multiplexed=20
network)
- SDI
- Selective Dissemination of Information
- SDI
- Space Defense Initiative
- SDI
- Standard Disk Interconnect
- SDI
- Standard Disk Interface
- SDI
- Storage Device Interconnect
- SDI
- Strategic Defense Initiative [US Government]
- SDIO
- Strategic Defense Initiative Organization
- SDIS
- Switched Digital Integrated Service
- SDK
- Software Development Kit
- SDL
- Specification and Description Language
- SDL
- System Design Language
- SDLC
- Synchronous Data Link Control [IBM]
- SDLP
- Standard Device Level Protocol
- SDM
- Sub-rate Data Multiplexer
- SDN
- Software-Defined Network
- SDO
- Staff Duty Officer
- SDOC
- Selective Dynamic Overload Controls
- SDP
- Service Delivery Point
- SDR
- Store Data Register
- SDRC
- Structural Dynamics Research Corporation
- SDS
- Sodium Dodecyl Sulfate
- SDS
- Switched Data Service
- SDS
- Synchronous Data Set
- SDSC
- San Diego Supercomputer Center
- SDSC
- Synchronous Data Set Controller
- SDU
- Service Data Unit
- SDV
- Shuttle Derived Vehicle [Space]
- SE
- South East
- SE
- Systems Engineer
- SEAP
- Service Element Access Point
- SEAS
- Signaling Engineering and Administration System
- SEATO
- SouthEast Asia Treaty Organization
- SEC
- Securities and Exchange Commission
- SEC
- Security Exchange Commission
- SECAM
- SEquential Couleur Avec Memoire
- SECNAV
- SECretary of the NAVy
- SECSY
- Spin-Echo Correlated SpectroscopY
- SED
- Stream EDitor
- SEI
- Software Engineering Institute (Carnegie Mellon)
- SEI
- Space Exploration Initiative
- SEL
- SELector
- SEL
- Software Engineering Laboratory
- SELV
- Safety Extra-Low Voltage
- SEM
- Scanning Electron Microscope
- SER
- Satellite Equipment Room
- SERC
- Science & Engineering Research Council
- SERC
- Swedish Energy Research Commission
- SES
- Service Evaluation System
- SESRA
- Seattle Employee Services Recreation Association
- SEST
- Swedish-European Submillimeter Telescope
- SET
- Single Electron Transfer
- SET
- Software Engineering Technology
- SETI
- Search for ExtraTerrestrial Intelligence
- SF
- San Francisco
- SF
- Science Fiction; Speculative Fiction
- SF
- Single Frequency
- SF
- Standard Form
- SF
- Star Frontiers
- SFD
- Sun Federal Division
- SFDM
- Statistical Frequency Division Multiplexing
- SFMC
- Satellite Facility Management Center
- SFO
- San Francisco CA
- SFRPG
- Science Fiction Role Playing Game
- SG
- Signal Ground
- SG
- StarGuard
- SG
- SubGroup
- SG
- SuperGroup
- SGI
- Silicon Graphics Incorporated
- SGML
- Standard Generalized Markup Language
- SGMP
- Simple Gateway Monitoring Protocol (superseded by =
SNMP)
- SHAPE
- Supreme Headquarters Allied Powers Europe
- SHAR
- SHell ARchiver
- SHCD
- Sherlock Holmes Consulting Detective
- SHF
- Super High Frequency (3-30GHz)
- SHRPG
- Super Hero Role Playing Game
- SI
- Staten Island
- SI
- Status Indicator
- SI
- System Integrater
- SIAM
- Society for Industrial and Applied Mathematics
- SIC
- Second In Command
- SIC
- Silicon Integrated Circuit
- SICK
- Single Income, Coupla' Kids
- SID
- Sudden Ionospheric Disturbance
- SID
- System IDentification
- SIG
- Special Interest Group
- SIGCAT
- Special Interest Group for Cd-rom Applications =
Technology
- SIMD
- Single Instruction, Multiple Data
- SIMM
- Single Inline Memory Module
- SINE
- SINE is not EINE
- SIP
- Single Inline Package/Pin
- SIPC
- Securities Investment Protection Corporation
- SIPP
- Strategic Industry Partners Program
- SIPS
- Satellite Imagery Processing System
- SIR
- Shuttle Imaging Radar
- SIRTF
- Space (formerly Shuttle) InfraRed Telescope Facility
- SIS
- Software Information Services
- SIS
- Strategic Information System
- SISAL
- Streams and Iteration in a Single-Assignment Language
- SISCOM
- Satellite Information System COMpany
- SIT
- Special Information Tone
- SITA
- Societe Internationale Telecommunications =
Aeronautiques
- SJ
- Society of Jesus
- SJC
- San Jose CA
- SKU
- Stock Keeping Unit
- SL
- Salvage Loss
- SL
- Space Launch [Space]
- SL
- SpaceLab
- SLA
- Special Libraries Association
- SLA
- Symbionese Liberation Army
- SLA
- Synchronous Line Adapter
- SLALOM
- Scalable Language-independent Ames Laboratory One-minute=20
Measurement
- SLAN
- Sine Loco, Anno, (vel) Nomine (without place, year, or =
name)
- SLAPP
- Strategic Litigation Against Protesting People
- SLAR
- Side Looking Airborne Radar
- SLBM
- Submarine Launched Ballistic Missiles
- SLC
- Space Launch Complex [Space]
- SLC
- Subscriber Loop Carrier
- SLC
- Super Low Cost
- SLDC
- Synchronous Data Link Control
- SLE
- Screening Line Editor
- SLED
- Single Large Expensive Drive
- SLIC
- Subscriber Line Interface Circuit
- SLIC
- System Link and Interrupt Controller (Sequent)
- SLIM
- Subscriber Line Interface Module
- SLIP
- Serial Line Internet Protocol
- SLP
- Super Long Play (VHS VCR, aka EP)
- SLS
- Space(lab) Life Sciences
- SLUFAE
- Surface Launched Unit, Fuel Air Explosive
- SM
- Service Mark
- SM
- Switching Module
- SMA
- Sergeant Major of the Army
- SMA
- Spectrum Manufacturers Association
- SMAS
- Supplementary MAin Store
- SMAS
- Switched Maintenance Access System
- SMASF
- SMAS Frame
- SMASPU
- SMAS Power Unit
- SMB
- System Message Block
- SMC
- Small Magellanic Cloud (see LMC)
- SMD
- Standard Molecular Data format
- SMD
- Storage Module Device (interface standard for disk =
drives)
- SMD
- Surface Mounted Devices
- SMDF
- Subscriber Main Distributing Frame
- SMDI
- Subscriber Message Desk Interface
- SMDR
- Station Message Detail Recording
- SMDR
- Station Message Detailed Recording
- SMDS
- Switched Multimegabit Data Service
- SMDS
- switched multimegabit data service, Bellcore-developed=20
standard
- SME
- Society of Manufacturing Engineers
- SME
- Solar Mesosphere Explorer
- SMEGMA
- Sophisticated Modern Editor with Gloriously Magnificent=20
Abilities
- SMERSH
- abbr. of Russian phrase meaning "Death to the spies."
- SMEX
- SMall EXplorers
- SMG
- SuperMasterGroup
- SMI
- Structure of Management Information
- SMI
- Sun Microsystems Inc.
- SMILS
- Sonobuoy Missile Impact Location System
- SMIT
- System Management Interface Tool
- SMK
- Software Migration Kit
- SMM
- Solar Maximum Mission
- SMO
- Santa Monica CA
- SMOC
- Small Matter Of Commitment
- SMOH
- Since Major OverHaul
- SMOP
- Small Matter Of Programming
- SMP
- Symmetric MultiProcessing
- SMPTE
- Society of Motion Picture and Television Engineers
- SMR
- Service Marketing Representative
- SMS
- Service Management System
- SMSA
- Standard Metropolitan Statistical Area
- SMT
- Surface Mount Technology
- SMTP
- Simple Mail Transfer Protocol
- SN
- Subnetwork Number
- SN
- Super Nova
- SNA
- Santa Ana (Orange County) CA
- SNA
- Systems Network Architecture [IBM]
- SNADS
- SNA Distribution Services
- SNADS
- Systems Network Architecture Distribution Service
- SNAFU
- Situation Normal -- All Fouled/F***ed Up
- SNAP
- Shipboard Non-tactical Automated data Processing =
program
- SNAP
- SubNetwork Access Protocol
- SNAP
- System and Network Administration Program
- SNCF
- Societe National des Chemins de Fer (French National =
Railways)
- SNET
- Southern New England Telephone
- SNF
- Server Normal/Natural Format
- SNF
- Server-Natural Format
- SNI
- Siemens Nixdorf Informationssysteme
- SNM
- SunNet Manager
- SNMP
- Simple Network Management Protocol
- SNOBOL
- StriNg Oriented symbOLic Language
- SNPA
- SubNetwork Point of Attachment
- SNR
- Signal to Noise Ratio
- SNR
- SuperNova Remnant
- SNTSC
- Super NTSC (video)
- SNU
- Solar Neutrino Units
- SO
- Sales Order
- SO
- Seller's Option
- SO
- Significant Other
- SO
- Space Opera
- SO
- Strike Out
- SOAC
- Service Order Analysis Control
- SOAP
- Symbolic Optimizing Assembler Program
- SOAR
- Smalltalk On A Risc
- SOC
- Service Oversight Center
- SOF
- Sales Order Form
- SOFIA
- Stratospheric Observatory For Infrared Astronomy
- SOH
- Service Order History
- SOH
- Start Of Header, ASCII control character =
(dec=01,control-A)
- SOHIO
- Standard Oil of oHIO [Corporate name]
- SOHO
- SOlar Heliospheric Observatory
- SOL
- Short on Landing (or, colloquially, Shit Out of Luck)
- SOMM
- Stop On Micro-Match
- SONAR
- SOund Detection And Ranging
- SONAR
- Service Order Negotiation And Retrieval
- SONDS
- Small Office Network Data System
- SONET
- Synchronous Optical NETwork
- SOP
- Standard Operating Procedure
- SOR
- Sales Order Request
- SOS
- Save Our Souls (International standard distress call, =
Morse=20
...---...)
- SOS
- Silicon On Sapphire
- SOW
- Statement Of Work
- SP
- Shore Patrol
- SP
- Short Play (VHS VCR)
- SP
- Signal Processor
- SP
- Signaling Point
- SP
- Southern Pacific (railroad) [Corporate name]
- SP
- Stack Pointer
- SP
- Standard Play (VHS VCR)
- SP
- Star Patrol
- SP
- System Product (IBM VM)
- SPA
- Software Publishers Association
- SPAG
- Standards Promotion and Applications Group
- SPAN
- Space Physics Analysis Network
- SPAN
- System Performance ANalyzer
- SPAR
- Stock Points Adp Replacement
- SPARC
- Scalable Processor ARChitecture
- SPARC
- Standards, Planning, And Requirements Committee
- SPARS
- Society of Professional Audio Recording Studios
- SPAWAR
- naval SPAce and WARfare command
- SPC
- Software Productivity Consortium
- SPC
- Southern Pacific Communications
- SPC
- Statistical Process Control
- SPC
- Stored Program Control
- SPCA
- Society for the Prevention of Cruelty to Animals
- SPCC
- Society for the Prevention of Cruelty to Children
- SPCS
- Stored Program Control Systems
- SPD
- Software Products Division
- SPDL
- Standard Page Description Language (ISO)
- SPDM
- Special Purpose Dextrous Manipulator
- SPE
- Symbolic Programming Environment
- SPEC
- Standard Performance Evaluation Corporation
- SPI
- Selective Population Inversion
- SPI
- Serial Peripheral Interface
- SPIM
- Sun Product Information Meeting
- SPITBOL
- SPeedy ImplemenTation of snoBOL
- SPL
- System Programming Language
- SPNI
- Society for the Protection of Nature in Israel
- SPOT
- Systeme Probatoire pour l'Observation de la Terre
- SPR
- Software Problem Report
- SPS
- Solar Power Satellite [Space]
- SPS
- Standby Power System
- SPU
- System Processing Unit
- SPUCDL
- Serial Peripheral Unit Controller/Data Link, "SPUC/DL"
- SPUD
- Storage Pedestal Upgrade Disk/Drive
- SPUR
- Systech Pluraxial Unplug Repeater
- SQA
- Software Quality Assurance
- SQC
- Single-Quantum Coherence
- SQC
- Statistical Quality Control
- SQE
- Signal Quality Error ("heartbeat")
- SQL
- Structured Query Language
- SQLDS
- Structured Query Language/Data System, "SQL/DS"
- SQUID
- Superconducting QUantum Interference Device
- SR
- Sales Representative
- SR
- Street Regal (KDX)
- SRA
- Selective Routing Arrangement
- SRAM
- Scratchpad RAM
- SRAM
- Short Range Attack Missile
- SRAM
- Static RAM
- SRB
- Solid (fuel) Rocket Booster [Space]
- SRD
- Secondary Receive Data
- SRI
- Stanford Research Institute (now called SRI =
International)
- SRM
- Solid Rocket Motor
- SRO
- Standing Room Only
- SRP
- source routing protocol, an IBM specification
- SRS
- Service Repair System
- SRTS
- Secondary Ready To Send
- SS
- Sales Support
- SS
- Sparc Station
- SS
- Special Services
- SS
- Stack Segment
- SS
- Stop Ship
- SSA
- Soaring Society of America
- SSA
- Social Security Administration [U.S. Government]
- SSAP
- Session Service Access Memory
- SSAS
- Station Signaling and Announcement Subsystem
- SSB
- Single SideBand
- SSBAM
- Single-SideBand Amplitude Modulation
- SSC
- Special Services Center
- SSC
- Specialized Systems Consultants
- SSCP
- Subsystem Services Control Point
- SSCP
- System Services Control Point
- SSD
- Solid State Disk
- SSDU
- Session Service Data Unit
- SSE
- Software Support Engineer
- SSE
- South-SouthEast
- SSEL
- Session Service Selector
- SSF
- Space Station Fred (er, Freedom)
- SSFF
- Showcase Software Factory of the Future
- SSG
- Staff SerGeant
- SSI
- Small Scale Integration
- SSI
- Solid-State Imager (on Galileo)
- SSI
- Space Services Incorporated [Space]
- SSI
- Space Studies Institute
- SSI
- Supplemental Security Income
- SSME
- Space Shuttle Main Engine
- SSO
- Satellite Switching Office
- SSP
- Signal Switching Point
- SSP
- Sponsor Selective Pricing
- SSP
- System Status Panel
- SSPC
- SSP Controller
- SSPF
- Space Station Processing Facility
- SSPRU
- SSP Relay Unit
- SSPS
- Satellite Solar Power Station [Space]
- SSR
- Secondary Surveillance Radar
- SSR
- Soviet Socialist Republic
- SSRMS
- Space Station Remote Manipulator System
- SSS
- System Support Specialist
- SST
- Spectroscopic Survey Telescope
- SST
- Spread-Spectrum Technology
- SST
- SuperSonic Transport
- SSTO
- Single Stage to Orbit [Space]
- SSTTSS
- Space-Space-Time-Time-Space-Space network
- SSTV
- Slow Scan TeleVision
- SSW
- South-SouthWest
- ST
- STart
- ST
- Seagate Technologies
- ST
- Short Ton
- STAGE
- Structured Text And Graphics Editor
- STARS
- Software Technology for Adaptable, Reliable Systems
- STB
- Software Technical Bulletin
- STC
- Serving Test Center
- STC
- Supplemental Type Certificate
- STC
- Switching Technical Center
- STD
- Sacrae Theologiae Doctor (doctor of sacred theology)
- STD
- Secondary Transmit Data
- STD
- Sexually Transmitted Disease (replaces VD)
- STD
- State Transition Diagram
- STD
- Subscriber Trunk Dialing [British, and elsewhere; equiv. =
DDD in=20
USA]
- STDM
- Statistical Time Division Multiplexing
- STI
- Standard Tape Interface
- STILO
- Scientific and Technical Intelligence Liaison Office
- STIS
- Space Telescope Imaging Spectrometer (to replace FOC and =
GHRS)
- STL
- St. Louis (Lambert) MO
- STN
- Scientific and Technical information Network
- STN
- SuperTwisted Nematic
- STO
- Slater Type Orbital
- STOH
- Since Top Overhaul (cylinders, etc., but not crankshaft, =
etc.)
- STOL
- Short TakeOff and Landing
- STP
- Shielded Twisted Pair
- STP
- Signal Transfer Point
- STP
- Software Through Pictures
- STP
- Standard Temperature and Pressure (see NTP)
- STP
- spanning tree protocol, an IEEE 802.1 routing =
specification
- STRPG
- Star Trek: The Role-Playing Game
- STS
- Sales Technical Support
- STS
- Shared Tenant Service
- STS
- Shuttle Transport System (or) Space Transportation =
System
- STS
- Space-Time-Space network
- STSCI
- Space Telescope Science Institute, "STScI"
- STSI
- Space Telescope Science Institute
- STTNG
- Star Trek: The Next Generation, "ST:TNG"
- STTOS
- Star Trek: The Old Stuff/The Original Series, "ST:TOS"
- STV
- Single Transferable Vote
- STV
- Space Transfer Vehicle [Space]
- SU
- Set Uid
- SUCCESS
- SUn Corporate Catalyst Electronic Support Service
- SUG
- Sun User's Group
- SUID
- Set UID
- SUM
- Symantec Utilities for Macintosh
- SUN
- Stanford University Network
- SUNDIAG
- SUN system DIAGnostics software
- SUNET
- Swedish University NETwork
- SUNOCO
- SUN Oil COmpany [Corporate name]
- SUNVIEW
- SUN's Visual / Integrated Environment for Workstations
- SUNY
- State University of New York
- SURANET
- Southeastern Universities Research Association network,=20
"SURAnet"
- SURF
- Sequent Users Resource Forum
- SUSP
- System Use Sharing Protocol
- SVC
- Switched Virtual Circuits
- SVGA
- Super VGA
- SVID
- System V Interface Definition
- SVP
- Schematic Verification Program
- SVR4
- System V Release 4
- SVS
- Switched Voice Service
- SVVS
- System V Validation Suite
- SVVS
- System V Verification Suite
- SW
- South West
- SW
- SuperWorld
- SWAN
- Sun Wide Area Network
- SWAS
- Submillimeter Wave Astronomy Satellite
- SWB
- SouthWestern Bell
- SWF
- ShortWave Fading
- SWIFT
- Society for Worldwide Interbank Financial Transfers
- SWM
- Solbourne Window Manager
- SWO
- Sales Work Order
- SWS
- Scientific Workstation Support (at ORNL)
- SX
- SimpleX signaling
- SXS
- Step by (X) Step switching [Telephony]
- SYC
- SYstem Control
- SYMPL
- SYsteMs Programming Language
- SYN
- SYNchronizing segment
- SYSGEN
- SYStem GENeration
- T
- Tip
- T
- Traveler
- T
- tera- (SI prefix)
- T
- tesla
- T
- ton(s), "t."
- T
- tonne(s), "t."
- T
- tritium
- T
- tun(s), "t."
- T1
- 1.544Mbps [telephony], one of the basic signalling systems =
24x64Kb
- T1FE
- T1 carrier Front End
- T1OS
- T1 carrier OutState, "T1/OS"
- T3
- 44.736 Mbps (eq 28 T1 channels) [Telephony]
- TA
- Teaching Assistant
- TA
- Terminal Adaptor
- TA
- Territorial Army
- TA
- Transfer Allowed
- TAB
- Tape Assembly Bonding
- TAB
- Technical Assistance Board
- TAC
- Tactical Air Command (see SAC)
- TAC
- Terminal Access Circuit
- TAC
- Terminal Access Controller [ARPAnet/MILNET/DDN]
- TACCS
- Tactical Army Combat service support Computer System
- TAE
- Transportable Applications Environment
- TAG
- Technical Advisory Group (ISO)
- TAL
- Transatlantic Abort Landing (Shuttle abort plan)
- TAM
- Total Available Market
- TANSTAAFL
- There Ain't No Such Thing As A Free Lunch
- TAP
- Telephone Assistance Plan
- TAR
- Tape ARchiver
- TAS
- Telephone Answering Service
- TASC
- Technical Assistance Service Center
- TASC
- Telecommunications Alarm Surveillance and Control =
system
- TASI
- Time Assignment Speech Interpolation system
- TAT
- TransAtlantic Telephone
- TAT
- Turn Arround Time
- TAU
- Thousand Astronomical Units [Space]
- TB
- TuBerculosis
- TBA
- To Be Announced/Arranged
- TBD
- To Be Designed/Determined
- TBO
- Time Between Overhaul
- TC
- Teachers College
- TC
- Technical Committee (ISO)
- TC
- Timing Counter
- TC
- Tinned Copper
- TC
- Toll Center
- TC
- Total Color
- TCA
- Terminal Control Area
- TCA
- Terminal Controlled Airspace
- TCAP
- Transaction Capabilities Applications Port
- TCAS
- T-Carrier Administration System
- TCB
- Task Control Block
- TCB
- Trusted Computer Base
- TCC
- Trunk Class Code
- TCCC
- Technical Committee on Computer Communications
- TCG
- Test Call Generation
- TCM
- Time Compression Multiplexer
- TCM
- Trellis Coded Modulation
- TCP
- Transmission Control Protocol
- TCPIP
- Transmission Control Protocol/Internet Protocol, =
"TCP/IP"
- TCR
- Transient Call Record
- TCS
- Thermal Control System
- TCS
- Traction Control System (to prevent wheel-spin)
- TCSEC
- Trusted Computer System Evaluation Criteria (orange =
book)
- TCT
- To Challenge Tomorrow
- TCT
- Toll Connecting Trunk
- TD
- TouchDown
- TD
- Transmit Data
- TD
- Treasury Department
- TDAS
- Traffic Data Administration System
- TDC
- Tape Data Controller
- TDC
- Terrestrial Data Circuit
- TDCC
- Transportation Data Coordinating Committee
- TDD
- Telecommunications Device for Deaf
- TDD
- Telephone Device for the Deaf
- TDE
- Transition Diagram Editor
- TDI
- Trusted Database Interpretation
- TDL
- Test Description Language
- TDM
- Time-Division Multiplexing
- TDMA
- Time-Division Multiple Access
- TDO
- Table of Denial Orders
- TDR
- Time Domain Reflectometer
- TDRS
- Tracking and Data Relay Satellite [Space]
- TDRSS
- Tracking and Data Relay Satellite System
- TDY
- Temporary DutY
- TE
- Terminal Equipment
- TE
- Transverse Electric
- TEB
- Teterboro NJ
- TEC
- Technology Exchange Company
- TECO
- Tape Editor and COrrector
- TECO
- Text Editor and COrrector
- TEFLON
- polyTEtraFLuOrethyleNe
- TEHO
- Tail End Hop Off
- TELEX
- TELetypewriter EXchange
- TELSAM
- TELephone Service Attitude Measurement
- TEM
- Transmission Electron Microscope
- TEMA
- Tubilar Exchanger Manufacturers Association
- TEMPEST
- Transient Electro-Magnetic Pulse Emanation STandard
- TEMPO
- TEtraMethyl-Piperidine-Oxyl
- TEMPO
- Technical Military Programming Organization
- TEMPOL
- TEtraMethyl-PiperidinOL-oxyl
- TEMPONE
- TEtraMethyl-PiperidinONE-oxyl
- TER
- Technical Education Resources
- TERM
- TERMinal
- TES
- Thermal Emission Spectrometer (on Mars Observer)
- TET
- Test Environment Toolkit
- TFC
- Total Full Color
- TFLAP
- T-carrier Fault-Locating Applications Program
- TFP
- Tops Filing Protocol
- TFS
- Translucent File System
- TFS
- Trunk Forecasting System
- TFT
- The Fantasy Trip
- TFT
- Thin Film Transistor
- TFTP
- Trivial File Transfer Protocol
- TG
- Thieves' Guild
- TGC
- Terminal Group Controller
- TGN
- Trunk Group Number
- TGV
- Two Guys and a Vax
- TH
- Trouble History
- THF
- TetraHydroFuran
- THIEF
- THief/This Here Isn't Even Fine
- THOR
- THermal Optical Recording
- THOR
- Tandy High-intensity Optical Recording
- THRUSH
- Technological Hierarchy for the Removal of Undesireables =
and=20
Subjugation of Humanity
- THX
- Tom Holman Xover
- TI
- Texas Instruments [Corporate name]
- TI
- Transport Independent
- TIA
- Telephone Information Access
- TIA
- Thanks In Advance [net jargon]
- TIA
- Transient Ischemic Attack
- TIC
- TermInfo Compiler
- TID
- Ter In Die (three times a day)
- TIFF
- Tag(ged) Image File Format
- TIGA
- Texas Instruments Graphics Architecture
- TINA
- TINA Is Not an Acronym
- TINA
- This Is Not an Acronym
- TIP
- Team Improvement Program
- TIRKS
- Trunk Integrated Record Keeping System
- TIROS
- Television InfraRed Observation Satellite
- TK
- TeleKommunikation
- TKO
- Technical Knock Out
- TL
- Total Loss
- TLA
- Three Letter Acronym
- TLB
- Translation lookaside buffer
- TLC
- Tender Loving Care
- TLC
- Thin-Layer Chromatography
- TLI
- Transport Level Interface (AT&T stream-based =
protocol)
- TLM
- Trouble Locating Manual
- TLN
- Trunk Line Network
- TLP
- Transmission Level Point
- TLTP
- Trunk Line and Test Panel
- TLV
- Type, Length, Value
- TM
- TradeMark
- TM
- Transverse Magnetic
- TMA
- Tycho Magnetic Anomaly [movie 2001]
- TMAC
- Treasury department's Multiuser Acquisition Contract
- TMDF
- Trunk Main Distributing Frame
- TMIS
- Telecommunications Management Information System
- TMMS
- Telephone Message Management System
- TMO
- Telephone Money Order
- TMP
- The Morrow Project
- TMR
- Transient Memory Record
- TMRC
- Tech Model Railroad Club [MIT]
- TMRC
- Transportation Modeling Research Center (TMRC {above} =
alter=20
ego)
- TMRS
- Traffic Measurement and Recording System
- TMRS
- Traffic Metering Remote System
- TMS
- TetraMethylSilane; TriMethylSilyl
- TMS
- Time-Multiplexed Switch
- TMSC
- Tape Mass Storage Control (DEC)
- TN
- Telephone Number
- TN
- Tennessee
- TN
- Transaction Number
- TN
- Twisted Nematic
- TNC
- Threaded Navy Connector
- TNC
- Threaded Neill Concelman (connector) [electronics] (see =
also=20
BNC)
- TNDS
- Total Network Data System
- TNN
- Trunk Network Number
- TNOP
- Total Network Operation Plan
- TNPC
- Traffic Network Planning Center
- TNT
- The NeWS Toolkit
- TNT
- TriNitroToluene
- TO
- Telegraph Office
- TO
- Turn Over
- TOC
- Table Of Contents
- TOCSY
- TOtal Correlation SpectroscopY
- TOD
- Time-Of-Day
- TODS
- Transactions on Database Systems (ACM)
- TOMS
- Total Ozone Mapping Spectrometer
- TOMS
- Transactions on Mathematical Software (ACM)
- TOOIS
- Transactions on Office Information Systems (ACM)
- TOOTKA
- Terms One Ought To Know About
- TOP
- Technical/Office Protocol
- TOPICS
- Total On-Line Program and Information Control System =
(NHK)
- TOPLAS
- Transactions on Programming Languages and Systems =
(ACM)
- TOPS
- Timesharing OPerating System
- TOPS
- Traffic Operator Position System
- TOPS
- Transcendental OPerating System
- TORES
- Text ORiented Editing System
- TOS
- The Operating System
- TOS
- Transfer Orbit Stage [Space]
- TOW
- Tube launched, Optically tracked, Wire guided missile
- TOY
- Time Of Year (clock)
- TP
- Test Plan
- TP
- Third Party
- TP
- Toll Point
- TP
- Transaction Processing
- TP
- Transport Protocol
- TP
- Twisted Pair
- TP
- from TP0 and TP4 (ISO/CCITT Transport Services; like =
TCP)
- TP0
- OSI Transport Protocol Class 0 (Simple Class)
- TP4
- OSI Transport Protocol Class 4 (Error Detection and =
Recovery=20
Class)
- TPC
- The Phone Company [movie The President's Analyst)
- TPE
- Twisted Pair Ethernet
- TPI
- Tracks Per Inch
- TPM
- Third-Party Maintenance
- TPMP
- Total network data system Performance Measurement Plan
- TPO
- Traveling Post Office
- TPPI
- Time-Proportional Phase Increment
- TPS
- Technical Publication Software
- TPS
- Technical Publishing Software
- TPS
- TeleProcessing Services
- TPS
- Thermal Protection System
- TPS
- Transactions Per Second
- TPT
- Twisted Pair Transceiver
- TQC
- Total Quality Control
- TR
- Test Register
- TR
- Token Ring
- TR
- Transfer Register
- TRAC
- Total Risk Analysis Calculation (SunTrac)
- TREAT
- Trouble Report Evaluation Analysis Tool
- TRIB
- Transfer Rate of Information Bits
- TRMTR
- TRamsMiTteR
- TROFF
- Text RunOFF, text formatter
- TROFF
- Typsetter new ROFF
- TRON
- The Real-time Operating Nucleus
- TRON
- The Realtime Operating system Nucleus
- TRR
- Tip-Ring Reverse
- TRR
- Token Ring Repeater
- TRSA
- Terminal Radar Service Area
- TRUSIX
- TRUSted unIX
- TRW
- Thompson, Ramo, and Woolridge
- TS
- Top Secret
- TSAP
- Transport Service Access Point
- TSCPF
- Time Switch and Call Processor Frame
- TSD
- Total System Design
- TSDU
- Transport Service Data Unit
- TSE
- Technical Support Engineer (Sun)
- TSEL
- Transport Service Selector
- TSI
- Time Slot Interchanger
- TSM
- Tech Support Manager
- TSO
- Technical Standard Order
- TSO
- Time Sharing Option
- TSORT
- Transmission System Optimum Relief Tool
- TSP
- Teleprocessing Services Program
- TSP
- Test SuPervisor
- TSP
- Thrift Savings Plan
- TSP
- Time Synchronization Protocol
- TSP
- Traffic Service Position
- TSP
- TriSodium Phosphate
- TSPS
- Traffic Service Position System
- TSR
- TSR (Fortune 500 Company that manufactures Dungeons &=20
Dragons)
- TSR
- Terminate and Stay Resident
- TSR
- Test Summary Report
- TSS
- Tethered Satellite System [Space]
- TSS
- Time-Sharing System
- TSS
- Trunk Servicing System
- TSST
- Time-Space-Space-Time network
- TST
- Time-Space-Time network
- TST
- Traveling-Wave Tube
- TSTO
- Two Stage to Orbit [Space]
- TSTS
- Time-Space-Time-Space network
- TT
- Trunk Type
- TT
- Tunnels & Trolls, "T&T"
- TTC
- Telecommunications Technology Council
- TTC
- Terminating Toll Center
- TTD
- Things To Do
- TTFN
- Tah Tah, For Now
- TTL
- Time To Live
- TTL
- Transistor-Transistor Logic
- TTMA
- Tennessee Tech Microcomputer Association
- TTP
- Telephone Twisted Pair
- TTP
- Trunk Test Panel
- TTS
- Trunk Time Switch
- TTTN
- Tandem Tie Trunk Network
- TTU
- Tennessee Technological University
- TTY
- TeleTYpe(writer)
- TTYC
- TTY Controller
- TUG
- TeX User's Group
- TUNIS
- Toronto UNIversity System
- TUR
- Traffic Usage Recording
- TUR
- Trunk Utilization Report
- TV
- TeleVision
- TVA
- Tennessee Valley Authority
- TVTWM
- Tom's Virtual TWM
- TW
- Thieves' World
- TWA
- Trans World Airlines
- TWG
- The Wollongong Group
- TWIMC
- To Whom It May Concern
- TWM
- Tab (or Tom's) Window Manager
- TWT
- Traveling Wave Tube
- TWX
- TeletypeWriter eXchange
- TX
- Texas
- TX
- Transmit
- TX
- Transuction
- TXID
- Transuction Identifier
- U
- (representing the greek mu) - micro, "u"
- U
- Universe
- U
- unified atomic mass unit, "u"
- U
- uranium
- UA
- United Artists
- UA
- User Agent
- UAB
- UNIX Appletalk Bridge
- UAE
- Unexpected Application Error
- UAE
- United Arab Emerates
- UAF
- User Authorization File
- UAPDU
- User Agent Protocol Data Unit
- UAR
- United Arab Republic
- UAR
- User Action Routine
- UARS
- Upper Atmosphere Research Satellite
- UART
- Universal Asynchronous Receiver and Transmitter
- UBA
- UniBus Adapter [DEC]
- UBC
- Universal Bibliographic Control
- UBC
- University of British Columbia
- UBM
- Unpressurized Berthing Mechanism
- UC
- University of CA
- UC
- upper case, "u.c."
- UCAR
- University Corporation for Atmospheric Research
- UCB
- University of California at Berkeley
- UCC
- Uniform Commercial Code
- UCD
- Uniform Call Distribution
- UCD
- University of California at Davis
- UCI
- University of California at Irvine
- UCL
- Underwater Sound Laboratory
- UCL
- University College London
- UCLA
- University of California at Los Angeles
- UCR
- University of California at Riverside
- UCSB
- University of California at Santa Barbara
- UCSC
- University of California at Santa Cruz
- UCSD
- University of California at San Diego
- UCSF
- University of California at San Francisco
- UDB
- Unified DataBase
- UDF
- User Defined Function
- UDMH
- Unsymmetrical DiMethyl Hydrazine
- UDP
- User Datagram Protocol
- UDT
- User Defined Type
- UEC
- User Environment Component
- UFO
- Unidentified Flying Object
- UFS
- Universal File System
- UG
- Micro-Grip (HP plotter paper positioner)
- UGC
- Uppsala General Catalog
- UH
- Upper Half
- UHF
- Ultra High Frequency (300-3000MHz)
- UHF
- Unrestricted Hartree-Fock
- UI
- Unix International
- UI
- User Interface
- UIC
- User Identification Code
- UID
- User IDentity
- UIL
- User Interface Language
- UIMS
- User Interface Management System
- UIP
- User Interface Program
- UIT
- Ultraviolet Imaging Telescope (Astro package)
- UITP
- Universal Information Transport Plan
- UIUC
- University of Illinois at Urbana-Champaign
- UK
- United Kingdom
- UKST
- United Kingdom Schmidt Telescope
- UL
- Underwriters Laboratory
- ULANA
- Unified Local-Area Network Architecture
- UMA
- Upper Memory Area
- UMB
- Upper Memory Blocks
- UMT
- Universal Military Training
- UN
- United Nations
- UNCLE
- United Network Command for Law Enforcement
- UNESCO
- United Nations Educational, Scientific, & Cultural=20
Organization
- UNICEF
- United Nations International Children's Emergency Fund =
(now UN=20
Child. Fund)
- UNICS
- UNiplex Information Computer Services
- UNISTAR
- UNIversal Single call Telecommunications Answering &=20
Repair
- UNIVAC
- UNIversal Automatic Computer
- UNIX
- not an acronym at all. Was a pun on MIT's MULTICS.
- UNMA
- Unified Network Management Architecture
- UNO
- United Nations Organization
- UP
- Union Pacific (railroad) [Corporate name]
- UP
- Upper Peninsula (of Michigan)
- UPC
- Universal Product Code
- UPDS
- Uninterruptible Power Distribution System
- UPI
- United Press International [Corporate name]
- UPN
- Umgekehrte Polnische Notation (RPN)
- UPS
- Uninterruptible Power Supply
- UPS
- United Parcel Service [Corporate name]
- UR
- University of Rochester
- UREP
- UNIX-RSCS Emulation Program (BITNET software for UNIX)
- US
- United States (of America)
- USA
- Union of South Africa
- USA
- United States Army
- USA
- United States of America
- USAC
- US Answer Center (Sun Hotline)
- USAC
- United States Answer Center
- USAC
- United States Auto Club
- USAF
- United States Air Force
- USAFA
- United States Air Force Academy (in Colorado Springs)
- USAN
- University Satellite Network
- USART
- Universal Synchronous Asynchronous =
Receiver/Transmitter
- USB
- Upper Side Band
- USC
- University of Southern California
- USCA
- United States Code, Annotated
- USCG
- United States Coast Guard
- USD
- Underwriters Safety Device
- USDA
- United States Department of Agriculture
- USENET
- USErs' NETwork
- USES
- United States Employment Service
- USFL
- United States Football League
- USG
- Unix Support Group
- USGS
- United States Geological Survey
- USHGA
- United States Hang Gliding Association
- USIA
- United States Information Agency
- USITA
- United States Independent Telephone Association
- USL
- Unix System Laboratories
- USM
- United States Mail
- USMC
- United States Marine Corps
- USMP
- United States Microgravity Payload
- USN
- United States Navy
- USO
- United Service Organizations
- USO
- Universal Service Order
- USO
- Unix Software Operation
- USOC
- Universal Service Order Code
- USP
- United States Pharmacopeia
- USP
- Universal Sampling Plan
- USPS
- United States Postal Service
- USPTO
- United States Patent and Trademark Office
- USR
- User Service Routines
- USRT
- Universal Synchronous Receiver/Transmitter
- USS
- United States Ship
- USSR
- Union of Soviet Socialist Republics
- USSS
- User Services and Systems Support
- USV
- Unterbrechungsfreie StromVersorgung
- USW
- Und So Weiter
- UT
- UTah
- UT
- Universal Time
- UT
- University of Tennessee
- UT
- University of Texas
- UTC
- Universal Coordinated Time
- UTE
- Union Technique de i"Electricite"
- UTP
- Unshielded Twisted Pair
- UTQGS
- Uniform Tire Quality Grading System
- UTR
- UpTime Ratio
- UUCICO
- Unix to Unix Copy Incoming Copy Outgoing
- UUCP
- Unix-to-Unix CoPy
- UUG
- Unix User Group
- UUT
- Unit Under Test
- UV
- UltraViolet
- UVS
- UltraViolet Spectrometer
- UW
- UnderWriter
- UW
- University of Wisconsin
- UWCSA
- University of Washington Computer Science Affiliates
- UWS
- Ultrix Workstation Software
- V
- Vergeltungswaffe (reprisal weapon: V1, V2)
- V
- fiVe
- V
- vanadium
- V
- version, "v"
- V
- versus, "v."
- V
- volt(s)
- VA
- Veterans Administration
- VA
- Virginia
- VAB
- Value Added Business
- VAB
- Vehicle Assembly Building (formerly Vertical Assembly=20
Building)
- VABIS
- Vagn Aktie Bolaget i Soedertaelje (Swedish truck =
company)
- VAC
- Volts of Alternating Current
- VAD
- Value Added Dealer
- VADS
- Verdix Ada Development System
- VAFB
- Vandenberg Air Force Base
- VAN
- Value-Added Network (e.g. Tymnet, Telenet, etc)
- VANS
- Value-Added Network Services
- VAP
- Value-Added Process
- VAR
- Value-Added Remarketer/Reseller
- VASCAR
- Visual Average Speed Computer And Recorder
- VASI
- Visual Approach Slope Indicator
- VAST
- Virtual Archive Storage Technology
- VAT
- Value Added Tax
- VAV
- Value Application Venders
- VAX
- Virtual Address eXtended
- VAXBI
- VAX Bus Interconnect
- VB
- Valence Bond
- VB
- Venture Business
- VC
- Virtual Circuit
- VCCI
- Volantary Control Council for Intersive
- VCM
- Voice Coil Motor
- VCO
- Voltage Controlled Oscillator
- VCPI
- Virtual Control Program Interface
- VCR
- VideoCassette Recorder
- VCS
- Virtual Circuit System
- VCU
- Virginia Commonwealth University
- VD
- Venereal Disease (see also STD)
- VDC
- Volts of Direct Current
- VDE
- Verband Deutscher Electrotechniker
- VDFM
- Virtual Disk File Manager
- VDI
- Virtual Device Interface
- VDM
- Vienna Development Method
- VDM
- Virtual Device Metafile
- VDS
- Virtual DMA Services
- VDT
- Video Display Terminal
- VE
- Value Engineering
- VEEGA
- Venus-Earth-Earth Gravity Assist (Galileo flight path)
- VESA
- Video Electronics Standards Association
- VEU
- Volume End User
- VEX
- Video Extension to X
- VF
- Video Frequency
- VF
- Voice Frequency
- VFEA
- VMEbus Futurebus+ Extended Architecture
- VFO
- Variable Frequency Oscillator
- VFR
- Visual Flight Rules
- VFS
- Virtual File System
- VFW
- Veterans of Foreign Wars
- VFW
- Volunteer Fire Department
- VFY
- VeriFY
- VG
- Very Good
- VG
- Vicar-General
- VGA
- Video Graphics Array/Accelerator
- VGF
- Voice Grade Facility
- VGI
- Virtual Graphics Interface
- VHD
- Video High Density
- VHDL
- Vhsic Hardware Description Language
- VHF
- Very High Frequency (30-300MHz)
- VHS
- Video Home System (VCR)
- VHSIC
- Very High Speed Integrated Circuit
- VI
- VIsual editor
- VIABLE
- Vertical Installation Automation BaseLinE
- VIC
- V.35 Interface Cable
- VIFRED
- VIsual FoRms EDitor
- VILE
- VI-Like Emacs
- VINE
- Vine Is Not Emacs
- VINES
- VIrtual NEtwork Software
- VIP
- Very Important Person
- VISTA
- Volunteers In Service To America
- VITA
- Vme International Trade Association
- VIU
- Voiceband Interface Unit
- VJ
- Video Jockey
- VL
- Vulgar Latin
- VLA
- Very Large Array radio telescope in Arizona or New =
Mexico
- VLBA
- Very Long Baseline Array
- VLBI
- Very Long Baseline Interferometry
- VLF
- Very Low Frequency (3-30KHz)
- VLIW
- Very Long Instruction Word
- VLSI
- Very Large Scale Integration
- VLT
- Very Large Telescope
- VM
- Virtual Machine
- VM
- Virtual Memory
- VMC
- Visual Meteorological Conditions
- VMCF
- Virtual Machine Communications Facility
- VMCMS
- Virtual Machine/Conversational Monitor System, =
"VM/CMS"
- VME
- Versa Modular Europa
- VME
- Versabus Module Europe
- VME
- Virtual Machine Environment
- VMM
- Virtual Memory Manager
- VMOS
- Vertical Metal Oxide Semiconductor (V-MOS) (see MOS)
- VMR
- Vertical Market Reseller
- VMR
- Volt-Meter Reverse
- VMRS
- Voice Message Relay System
- VMS
- Vertical Motion Simulator
- VMS
- Virtual Memory System
- VMS
- Virtual Memory operating System
- VMS
- Voice Mail System
- VMS
- Voice Management System
- VMSP
- Virtual Machine/System Product, "VM/SP"
- VMTP
- Versatile Message Transaction Protocol
- VNF
- Virtual Network Feature
- VNL
- Via Net Loss plan
- VNLF
- Via Net Loss Factor
- VNY
- Van Nuys CA
- VOA
- Voice Of America
- VOA
- Volunteers Of American
- VODAS
- Voice Over Data Access Station
- VOIR
- Venus Orbiting Imaging Radar (superseded by VRM)
- VOIS
- Voice-Operated Information System
- VOQ
- Visiting Officer's Quarters
- VOR
- VHF Omnidirectional Range
- VORT
- Very Ordinary Rendering Toolkit
- VP
- View Processor
- VP
- Virtual President
- VPF
- Vertical Processing Facility
- VPISU
- Virginia Polytechnic Institute and State University,=20
"VPI&SU"
- VPN
- Virtual Private Network
- VR
- Variety Reduction
- VRAM
- Video-RAM
- VRC
- Vertical Redundancy Character
- VRM
- Venus Radar Mapper (now called Magellan)
- VRM
- Virtual Resource Manager
- VRM
- Voice Recognition Module
- VROOMM
- Virtual Realtime Object Oriented Memory Manager
- VRS
- Voice Response System
- VS
- VAXStation
- VSA
- Virtual Server Architecture
- VSAM
- Virtual Sequential Access Method
- VSAM
- Virtual Storage Access Method
- VSAT
- Very Small Aperture Terminal, satellite dish
- VSB
- Vestigial SideBand modulation
- VSE
- Virtual Storage Extended
- VSP
- Vector/Scalar Processor
- VSR
- Voice Storage and Retrieval
- VSS
- Voice Storage System
- VSSP
- Voice Switch Signaling Point
- VSX
- X/open Verification Suite
- VT
- Virtual Terminal
- VTAM
- Virtual Telecommunications Access Method [IBM]
- VTI
- Virtual Terminal Interface
- VTOC
- Volume Table Of Contents
- VTOL
- Vertical TakeOff and Landing
- VTP
- Virtual Terminal Protocol
- VTR
- VideoTape Recorder
- VTS
- Video Teleconferencing System
- VTS
- Virtual Terminal Service
- VU
- Volume Unit
- VUIT
- Visual User Interface Tool
- VUP
- Vax Unit of Performance
- VV
- Villains & Vigilantes, "V&V"
- VVSS
- Vertical Volute Spring Suspension
- VWS
- VAX Workstation Software
- VXI
- VMEbus Extension for Instrumentation
- W
- Wales/Welsh
- W
- Wednesday, "W."
- W
- West
- W
- Width
- W
- watt
- W
- week(s), "w."
- W
- wofram (tungsten)
- WA
- Washington
- WA
- Western Australia
- WAC
- Womens Air Corps
- WADS
- Wide Area Data Service
- WAG
- Wild-Assed Guess
- WAIS
- Wide Area Information Server
- WAN
- Wide Area Network
- WAP
- Wissenschaftliche ArbeitsPlatzrechner
- WAP
- Work Assignment Procedure
- WARC
- World Administrative Conference
- WATFOR
- WATerloo FORtran
- WATS
- Wide Area Telephone Service
- WATSUP
- WATfor Student Utility Program
- WB
- Water Ballast
- WB
- WayBill
- WBC
- White Blood Cells
- WBS
- Wednesday Business School
- WBS
- Work Breakdown Structure
- WC
- Water Closet
- WC
- Wire Center
- WC
- Without Charge
- WCL
- Widget Creation Library
- WCPC
- Wire Center Planning Center
- WCS
- Writable Control Store (VAX)
- WCTU
- Women's Christian Temperance Union
- WD
- White Dwarf
- WD
- Working Draft
- WDC
- Washington, District of Columbia
- WDC
- Work Distribution Chart
- WDM
- wavelength-division multiplexing, for optical fibre,=20
ultra-gigabit
- WDT
- Watch Dog Timer
- WELL
- Whole Earth 'Lectronic Link
- WF
- Work Factor method
- WFPC
- Wide Field / Planetary Camera (on HST)
- WFPCII
- Replacement for WFPC
- WG
- Working Group
- WGS
- WorkGroup System (AT&T's 386 PC)
- WH
- WarHammer
- WHBL
- World Home Bible League
- WHO
- World Health Organization
- WHOI
- Woods Hole Oceanographic Institution
- WHSE
- Warehouse
- WHSGNASBN
- We Have Some Good News And Some Bad News
- WI
- Wisconsin
- WIN
- WIssenschaftsNetz
- WINS
- Wollongong Integrated Networking Solutions
- WIP
- Work-In-Process
- WIS
- WWMCCS Information System
- WITS
- Washington Interagency Telecommunications System
- WIYN
- Wisconsin / Indiana / Yale / NOAO telescope
- WKS
- Well Known Services
- WLN
- Wiswesser Line Notation
- WM
- Work Manager
- WMF
- Windows MetaFile
- WMO
- World Meteorological Organization
- WMSCR
- Weather Message Switching Center Replacement
- WNIM
- Wide area Network Interface Module
- WNN
- Watashi no Namae ha Nakajima desu. (Kana-Kanji henkan), =
"Wnn"
- WO
- Write Only
- WOMBAT
- Waste Of Money, Brains, And Time
- WOPR
- War Operations Planned Response (from "Wargames" =
movie)
- WORM
- Write Once, Read Many time
- WOSA
- Windows Open System Architecture
- WOW
- Worlds of Wonder
- WP
- Word Processing
- WP
- Working Paper
- WPS
- Word Processing Software
- WRT
- Whitewater Resource Toolkit
- WRT
- With Respect To
- WS
- Work Sampling
- WS
- Work Station
- WSD
- Work Station Division
- WSI
- Wafer Scale Integration
- WSJ
- Wall Street Journal
- WSMR
- White Sands Missile Range
- WSN
- Wirth Syntax Notation
- WSP
- Work Simplification Program
- WSW
- West-SouthWest
- WTF
- What The Fuck
- WTR
- Western Test Range
- WU
- Washington University
- WU
- Western Union
- WUPPE
- Wisconsin Ultraviolet PhotoPolarimter Experiment (Astro=20
package)
- WV
- West Virginia
- WW
- World War
- WW2
- World War II
- WWFO
- World Wide Field Operations
- WWI
- World War I
- WWII
- World War II
- WWMCCS
- World-Wide Military Command and Control System
- WWOPS
- World-Wide Operations
- WY
- Wyoming
- WYSIWIS
- What You See Is What I See
- WYSIWYG
- What You See Is What You Get
- X25
- CCITT recommendation for packet switched networks DTE =
interfacing,=20
"X.25"
- XA
- eXtended Architecture (31-bit addressing in IBM =
machines)
- XB
- X-Bar
- XBT
- X-Bar Tandem
- XCF
- eXperimental Computing Facility
- XCMOS
- eXtended CMOS
- XD
- eX (without) Dividend
- XD
- without Dividend
- XDMCP
- X Display Manager Control Protocol
- XDR
- eXternal Data Representation
- XFE
- X-Front End
- XFER
- transFER (the X is for trans)
- XGA
- eXtended Graphics Adapter
- XID
- eXchange IDentification
- XIE
- X Imaging Extension
- XIM
- X Input Method
- XINU
- Xinu Is Not UNIX
- XL
- eXtra Large
- XLFD
- X Logical Font Description
- XMI
- eXtended Memory Interconnect (DEC)
- XMM
- X-ray Multi Mirror
- XMS
- eXtended Memory Specification
- XMS
- eXtended Multiprocessor operating System
- XMTR
- transMiTteR (the X is for trans)
- XNS
- Xerox Network Services/Systems/Standard
- XO
- eXecutive Officer
- XOR
- eXclusive OR (logical function)
- XP
- Jesus Christ (from the first two letters of "Christ" =
written in=20
Greek)
- XPG
- X/Open Portability Guide
- XPG2
- X/Open Portability Guide Release-2
- XPG3
- X/Open Portability Guide Release-3
- XPORT
- transPORT (the X is for trans)
- XRM
- X Resource Manager
- XSECT
- cross SECTion (the X is for cross)
- XT
- X.11 Toolkit, "Xt"
- XT
- eXtended Technology
- XTAL
- crysTAL (another version of x for crys, see XMTR)
- XTAL
- crysTAL (the X is for crys)
- XTC
- eXternal Transmit Clock
- XUI
- X-windows User Interface
- XUV
- eXtreme UltraViolet
- XVIEW
- X window system-based Visual/Integrated Environment for=20
Workstations
- XWSDS
- X Window System Display Station
- Y
- year, "y."
- Y
- yen
- Y
- yttrium
- YA
- Yet Another
- YACC
- Yet Another Compiler Compiler
- YAFIYGI
- You Asked For It, You Got It
- YB
- YearBook
- YMCA
- Young Mens Christian Association
- YMHA
- Young Mens Hebrew Association
- YOB
- Year Of Birth
- YP
- Yellow Pages
- YPVS
- Yamaha Power Valve System
- YRS
- Ysgarth Rules System
- YSO
- Young Stellar Object
- YST
- Yukon Standard Time
- YT
- Yukon Territory
- YT
- Yukon Time
- YTD
- Year To Date
- YWCA
- Young Womens Christian Association
- YWHA
- Young Womens Hebrew Association
- YY
- Year
- Z
- Zenith
- Z
- Zero
- ZB
- Zero Beat
- ZBB
- Zero Base Budgeting
- ZBR
- Zone Bit Recording
- ZD
- Zero Defect
- ZETA
- Zero Energy Thermonuclear Assembly
- ZFS
- Zero-Field Splitting
- ZG
- Zero Gravity
- ZGS
- Zero Gradient Synchrotron
- ZI
- Zonal Index
- ZIB
- Konrad-Zuse-Zentrum fuer Informationstechnik Berlin
- ZIF
- Zero Insertion Force
- ZIP
- Zig-zag Inline Pin
- ZIP
- Zone Improvement Plan (post office code)
- ZIP
- Zone Information Protocol
- ZK
- barrage balloon (navy symbol)
- ZMRI
- Zinc Metals Research Institute
- ZPG
- Zero Population Growth
- ZPRSN
- Zurich Provisional Relative Sunspot Number
- ZQC
- Zero-Quantum Coherence
- ZST
- Zone Standard Time
- ZT
- Zone Time
- ZWEI
- Zwei Was Eine Initially
- ZZF
- Zentralamt zur Zulassung von=20
Fernmeldeeinrichtungen
=20
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