0-9
µ
(mu): Micro Prefix
for 10 power -6
1GL:
First Generation Language Machine
language (Software)
2D:
2Dimensional
2D:
Double Density (Hardware)
2GL:
Second Generation Language Assembler
and other low-level languages (Software)
2S:
2 Sides (Hardware)
3D:
3Dimensional
3GL:
Third Generation Language High
level programming languages (Software)
4GL:
Fourth Generation Language Database
access languages (Software)
4GT:
4 Gigabyte memory Tuning
5GL:
Fifth Generation Language Artificial
intelligence languages (Software)
6DOF:
Six Degrees Of Freedom
A
A:
Ampere Current
measurement unit
A/D:
Analog to Digital (Hardware)
A/P:
Accounts Payable
A/PC:
Auto Personal Computer (Hardware)
A/R:
Accounts Receivable
A/UX:
Apple UniX (Operating
systems) (Apple)
AA:
Auto Answer
AAB:
All-to-All Broadcast
AAF:
Advancced Authoring Format
AAL:
Atm Adaption Layer
AAP:
Applications Access Point (DEC)
AARP:
Appletalk Address Resolution Protocol (Network)
(Apple)
AAS:
Auto Area Segmentation Scanner
technology which detects and optimizes text and
graphics on the same page (Hardware) (Epson)
AAS:
All-to-All Scatter
AASP:
Ascii Asynchronous Support Package
AAT:
Average Access Time
AATP:
Authorized Academic Training Program (Microsoft)
ABA:
Address Book Archive Filename
extension
ABC:
Atanasoff-Berry Computer First
digital calculating machine that used vacuum tubes
ABEND:
ABnormal END (Software)
ABI:
Application Binary Interface Defines
the binary system interface between compiled
applications and the operating system on which they run.
ABIOS:
Advanced Basic Input Output System
ABIST:
Automatic Built-In Self-Test (IBM)
ABLE:
Adaptive Battery Life Extender
ABR:
Available Bit Rate
ABRS:
Automated Book Request System
ABS:
Address Book Synchronization (IBM)
ABS:
ABSolute
ABS:
Automatic Backup System
ABT:
ABorT
ABTS:
Ascii Block Terminal Services
AC:
Alternating Current
AC:
Audio Codec (Hardware)
AC:
AutoCheck
AC:
Automatic Computer
ACAP:
Application Configuration Access Protocol
ACC:
ACCumulator
ACD:
Automatic Call Distributor
ACDI:
Asynchronous Communications Device Interface
ACE:
Access Control Encryption
ACE:
Access Control Entry (Operating
systems)
ACE:
Advanced Computing Environment
ACE:
Adverse Channel Enhancements
ACE:
Adobe Certified Expert (Adobe)
ACE:
Automatic Computing Engine
ACF:
Access Control Field
ACF:
Advanced Communications Function
ACH:
Automated Clearing House
ACIA:
Asynchronous Communication Interface Adapter
ACIAS:
Automated Calibration Interval Analysis System
ACID:
Atomicity, Consistency, Isolation and Durability
ACIS:
American Committee for Interoperable Systems
ACK:
ACKnowledge A
transmission control character transmitted by a station
as
an affirmative response to the station with which the connection has been set
up. (Communication)
ACL:
Access Control List For
granting or denying access to computer resources (security) (Operating systems)
ACM:
Association for Computing Machinery (Organizations)
ACM:
Audio Compression Manager (Microsoft)
ACMS:
Application Control Management System
ACN:
Automatic Center Network (Communication)
ACP:
Auxiliary Control Process
ACP:
Ancillary Control Program
ACPI:
Advanced Configuration and Power Interface (Hardware)
ACR:
Allowed Cell Rate
ACROSS:
Automated Cargo Release and Operations Service System
ACS:
Anti Curl System
ACS:
Access Control System
ACS:
Asynchronous Communication Server
ACS:
Advanced Computer System (IBM)
ACS:
Access Control Set
ACSE:
Association Control Service Element The
method used in International Organization for
Standardization's
open systems interconnection (OSI) for establishing a call between two
applications.
ACSS:
Audio Cascading Style Sheet
ACTS:
Automated Computer Time Server
ACTS:
Advanced Communication Technology Satellite (Communication)
(NASA)
ACTT:
Advanced Communication and Timekeeping Technology
ACU:
Automatic Calling Unit
ACVC:
Ada Compiler Validation Capacity
AD:
Active Directory (Operating
systems)
ADA:
Automatic Data Acquisitions
ADB:
Apple Desktop Bus Bus
architecture (Hardware) (Apple)
ADBS:
Advanced Data Broadcast System (Communication)
ADC:
Application Delete Certificate
ADC:
Adaptive Data Compression (Hayes)
ADC:
Advanced Data Connector (Databases)
(Microsoft)
ADC:
Analog to Digital Converter A
device that translates analog signals to digital signals.
Contrast
with digital-to-analog converter (DAC). (Hardware)
ADC:
ADd with Carry
ADCCP:
Advanced Data Communication Control Procedures (Communication)
ADD:
Automatic Document Detection
ADF:
Automatic Document Feeder Scanner
device (Hardware)
ADF:
Automatically Defined Function
ADF:
Adapter Description File File
name extension
ADI:
AutoCad Device Interface Driver
ADK:
Appliance Development Kit (Software)
ADL:
Address Data Latch
ADLAT:
ADaptive LATtice filter
ADLC:
Asynchronous Data Link Control
ADM:
Add Drop Multiplexer
ADMACS:
Apple Document Management And Control System
ADMD:
ADministrative Management Domain
ADML:
Application Description Markup Language (Software)
ADMS:
Adstar Distributed Management System
ADO:
Activex Data Object (Microsoft)
ADP:
Automatic Data Processing
ADP:
Access Database Project Filename
extension (Software) (Microsoft)
ADPCM:
Adaptive Differential Pulse Code Modulation Communication
protocol (Communication)
ADR:
ADdRess
ADR:
Advanced Digital Recording (Hardware)
ADS:
Application Development System
ADS:
Automatic Distribution System
ADS:
Application Development Solutions (AT&T)
ADS/O:
Application Development System / Online
ADSC:
Adobe Document Structuring Conventions
ADSI:
Active Directory Service Interface (Network)
ADSI:
Analog Display Services Interface
ADSL:
Asymmetric Digital Subscriber Line Communication
infrastructure (Communication)
ADSM:
Advanced Data Storage Management (IBM)
ADSM:
Adstar Distributed Storage Manager (Databases)
(IBM)
ADSP:
Appletalk DataStream Protocol (Apple)
ADSR:
Attack, Decay, Sustain, Release
ADT:
Application Data Type
ADT:
Abstract Data Type (Microsoft)
ADT:
Access Developer Toolkit (Software)
(Microsoft)
ADT:
Atlantic Daylight Time Timezone:
GMT -4:00
ADU:
Automatic Dialing Unit
AE:
Above or Equal
AEB:
Analog Expansion Bus (Dialogic)
AEC:
Architecture, Engineering, Construction A
computer graphics market requiring specialized
applications
that facilitate efficient planning, design, drafting, and analysis.
AEI:
Application Enabling Interface
AES:
Advanced Encryption Standard
AESA:
Atm End System Address (Communication)
AFA:
Accelerated File Access
AFAIK:
As Far As I Know (Messages)
AFC:
Application Foundation Classes (Software)
(Microsoft)
AFC:
Automatic Font Change
AFC:
Automatic Frequency Control
AFD:
Automatic File Distribution
AFDW:
Active Framework for Data Warehousing (Microsoft)
AFFS:
Amiga Fast File System (Operating
systems)
AFI:
Authority and Format Indentifier
AFII:
Association for Font Information Interchange
AFIRM:
Automated Fingerprint Image Reporting and Match
AFIS:
Automated Fingerprint Identification System
AFLCD:
AntiFerroelectric Liquid Cristal Display (Hardware)
AFM:
Atomic Force Microscope (Hardware)
AFM:
Atomic Force Microscope (Hardware)
AFM:
Adobe Font Metrics File
name extension (Adobe)
AFP:
Advanced Function Presentation (IBM)
AFP:
Appletalk Filing Protocol (Communication)
(Apple)
AFP:
Advanced Function Printing
AFR:
Annualized Failure Rate (Hardware)
AFR:
Alternate Frame Rendering (Hardware)
AFS:
Andrew File System
AFT:
Adapter Fault Tolerance (Intel)
AFTP:
Anonymous File Transfer Protocol
AGA:
Advanced Graphics Adapter
AGARAS:
AntiGlare AntiReflective AntiStatic
AGC:
Automatic Gain Control
AGE:
Amorphium Graphics Engine
AGP:
Accellerated Graphic Port (Hardware)
AGU:
Address Generation Unit
AH:
Authentication Header (Network)
AHA:
Adaptec Host Adapter (Hardware)
(Adaptec)
AHDT:
Alaska-Hawaii Daylight Time Timezone:
GMT -10:00
AHS:
Automated Highway Systems
AHST:
Alaska-Hawaii Standard Time Timezone:
GMT -10:00
AI:
Artificial Intelligence
AI:
Analog Input
AIA:
Applications Integration Architecture (DEC)
AIC:
Aixwindows Interface Composer (IBM)
AIF:
Audio Interchange Format
AIFF:
Audio Interchange File Format (Apple)
AIIM:
Association for Information and Image Management
AIM:
Aol Instant Messenger
AIM:
Application Integration Module
AIN:
Advanced Intelligent Network
AIR:
Architecture Implementation Review
AIS:
Automated Information System
AIS:
Alarm Indication Signal (Telecommunication)
AISP:
Association of Information Systems Professionals
AIT:
Advanced Intelligent Tape (Hardware)
AIX:
Advanced Interactive executive IBM's
Unix (Operating systems) (IBM)
aka:
Also Known As (Messages)
ALB:
Advanced Load Balancing
ALC:
Application Load Certificate
ALC:
Arithmetic and Logic Circuits
ALC:
Automatic Level Control
ALDC:
Adaptive Lossess Data Compression (IBM)
ALE:
Application Linking Enabling
ALE:
Application Launch and Embedding (Software)
ALE:
Address Latch Enable
ALEC:
Alternative Long Exchange Carrier (Communication)
ALGOL:
ALGOrithmic Language Programming
language (Software)
ALIBI:
Adaptive Location of Internetworked Bases of Information
ALINK:
Active LINK
ALIWEB:
Archie Like Indexing in the WEB
ALM:
Asynchronous Line Multiplexer A
device that connects multiple terminals or other serial
interface
devices to Sun network file servers or workstations. Also known as
"multiple terminal interface."
ALN:
Asynchronous Learning Network
ALR:
Advanced Logic Research
ALT:
ALTernate
ALU:
Arithmetic Logic Unit Device
in a CPU performing arithmetic operations (Hardware)
AM:
Amplitude Modulation
AMA:
Automatic Message Accounting
AMASS:
Archival Management And Storage System Manufacturer
AMD:
Advanced Micro Devices CPU
Manufacturer (AMD)
AMD:
Active Matrix Display
AME:
Advanced Metal Evaporation Recording
media technology (Hardware)
AMH:
automated material
handling
AMHA:
Advanced Macro Heuristic Analysis (Dr.
Solomon)
AMI:
American Megatrends, Inc.
AMI:
Alternate Mark Inversion
AMLCD:
Active-Matrix Liquid Crystal Display (Hardware)
AMMA:
Advanced Memory Management Architecture
AMP:
Attached Media Processor (Hardware)
AMPS:
Advanced Mobile Phone System (Communication)
AMS:
Advanced Microcomputer System (Hardware)
(Siemens-Nixdorf)
ANDF:
Architecture-Neutral Distribution Format
AN:
Access Notde (Telecommunication)
ANI:
ANImated cursor File
name extension (Microsoft)
ANN:
Artificial Neural Network
ANN:
ANNotations File
name extension (IBM)
ANR:
Automatic Network Routing (Telecommunication)
ANS:
American National Standard
ANSI:
American National Standard Institute An
organization that reviews and approves product
standards in the United States. (Organizations)
ANX:
Automotive Network eXchange
AO:
Analog Output
AO/DI:
Always On/Dynamic Isdn
AOCE:
Apple Open Collaborative Environment (Apple)
AOE:
Application Operating Environment (AT&T)
AOL:
America OnLine (Network)
AOS:
Add Or Subtract
AOW:
Asia and Oceania Workshop One
of the three regional OSI implementors workshops.
AP:
Application Processor
AP:
Access Point (Hardware)
APA:
Adaptive Packet Assembly
APA:
Arithmetic Processing Accelerator
APA:
All Points Addressable
APAR:
Authorized Program Analysis Report (IBM)
APC:
American Power Conversion
APCUG:
Association of PC User Groups
APCVG:
Association of Personal Computer Users Group (Organizations)
APDU:
Application Protocol Data Units
APF:
Apple Filing Protocol (Apple)
API:
Application Programming Interface A
set of calling conventions defining how a service is
invoked through a software package. (Software)
APIC:
Advanced Programmable Interrupt Controller (Intel)
APIS:
Advanced Passenger Information System
APL:
A Programming Language (Software)
APL:
Average Picture Level Monitor
quality parameter (Hardware)
APL:
Applied Physics Laboratory, Skaggsville, MD. Advanced research facility.
APM:
Advanced Power Management
APNIC:
Asia-Pacific Network Information Center
APOP:
Authenticated Post Office Protocol
APP:
APPlication File
name extension
APPC:
Advanced Program to Program Communication
APPI:
Advanced Peer-to-Peer Internetworking (Network)
APPN:
Advanced Peer-to-Peer Networking (Network)
(IBM)
APRP:
Adaptive Pattern Recognition Processing
APS:
Advanced Printing Service (IBM)
APS:
Analog Protection System
APS:
Advanced Photo System
APS:
Asynchronous Protocol Specification
APS:
Automatic Protection Switch (Telecommunication)
APSE:
Ada Programming Support Environment (Software)
APSO:
Audio Precision System One (Hardware)
APT:
Address Pass Through
APT:
Advanced Parallel Technology
APT:
Automatically Programmed Tools
AR:
Application Requester (IBM)
ARA:
Appletalk Remote Access (Communication)
(Apple)
ARAG:
Antireflective Antiglare
ARAS:
Antireflective Antistatic
ARC:
ARChive File
name extension
ARCA:
Advanced Risc Computing Architecture
ARCnet:
Attached Resource Computer NETwork
ARIN:
American Registry for Internet Numbers (Organizations)
ARL:
Adjusted Ring Length
ARLL:
Advanced Run Length Limited
ARM:
Advanced Risc Machine
ARM:
Asynchronous Response Mode
ARM:
Annotated Reference Manual
ARMA:
Association of Records Managers and Administrators
ARO:
Adaptec Raidport Option (Hardware)
(Adaptec)
ARP:
Address Resolution Protocol The
Internet protocol used to dynamically map Internet
addresses
to physical (hardware) addresses on local area networks. Limited to networks
that support
hardware
broadcast. (Network)
ARPA:
Advanced Research Projects Agency Now
called Defense Advanced Research Projects Agency
(DARPA),
the U.S. government agency that funded the ARPANET. (Organizations)
ARPANET:
Advanced Research Projects Agency NETwork A
packet switched network developed in the early
1970s. The "grandfather" of today's Internet. ARPANET was
decommissioned in June 1990.
ARPL:
Adjust Requested Privilege Level
ARQ:
Automatic Repeat request (Communication)
ARTA:
Apple Real Time Architecture
ARTIC:
A Real-Time Interface Coprocessor (IBM)
ARTS:
Asynchronous Remote Takeover Server
ARTT:
Asynchronous Remote Takeover Terminal
ARU:
Audio Response Unit
ARX:
Autocad Runtime extensions (Software)
(Autodesk)
AS:
Application Server (IBM)
AS:
Autonomous System
AS/400:
Application System/400 (IBM)
AS/U:
Advanced Server for Unix
AS3AP:
Ansi Sql Standard Scalable And Portable
ASA:
Active Server Application (Network)
(Microsoft)
ASAI:
Adjunct Switch Application Interface (AT&T)
ASAP:
As Soon As Possible (Messages)
ASAP:
Automatic Switching And Processing
ASB:
Advanced System Buffering (Hardware)
(Intel)
ASC:
ASCii text File
name extension
ASC:
Authorized Support Centers
ASCC:
Automatic Sequence Controlled Calculator (IBM)
ASCI:
Accelerated Strategic Computing Initialtive
ASCII:
American Standard Code for Information Interchange
The
standard binary encoding of alphabetical characters, numbers, and other keyboard
symbols
(7
bit character code.)
ASD:
Automatic Skip Driver (Operating
systems) (Microsoft)
ASE:
Alladin Smartcard Environment
ASE:
Adaptive Server Enterprise (Databases)
(Sybase)
ASET:
Automated Security Enhancement Tool A
tool that allows a user to specify an overall system
security level (low, medium, or high) and automatically maintain systems
at those levels.
ASF:
Applied Science Fiction Manufacturer
(ASF)
ASF:
Advanced Streaming Format
ASF:
Active Streaming Format
ASF:
Apache Software Foundation (Organizations)
ASIC:
Application-Specific Integrated Circuit A
gate array or other non-standard chip design
for proprietary use. (Hardware)
ASID:
Address Space IDentifier
ASIT:
Advanced Security and Identification Technology
ASL:
Adaptive Speed Levelling
ASLM:
Apple Shared Library Manager (Apple)
ASM:
Advanced Server Manager (Operating
systems) (Acer)
ASM:
Advanced System Management (IBM)
ASM:
AsseMbler File
name extension
ASMP:
ASymmetric MultiProcessing System
architecture (Hardware)
ASN:
Abstract Syntax Notation The
International Organization for Standardization's open
systems interconnection (OSI) language for describing abstract syntax.
ASN:
Autonomous System Number
ASO:
Automated Systems Operations
ASP:
Association of Shareware Professionals (Organizations)
ASP:
Active Server Pages Dynamic
Web pages engine (Network) (Microsoft)
ASP:
Advanced Signal Processing
ASP:
Application Service Provider (Software)
ASP:
Authorized Service Provider
ASPI:
Advanced Scsi Programming Interface
ASPS:
Advanced Signal Processing System
ASR:
Automatic Send Receive (Communication)
ASR:
Automatic Send-Receive
ASR:
Automatic Server Recovery (Operating
systems)
ASR:
Automatic Service Request (Communication)
ASR:
Automatic Speech Recognition
ASR:
Address Space Register
AST:
Atlantic Standard Time Timezone:
GMT -4:00
ASVD:
Analog Simultaneous Voice & Data (Communication)
ASYNC:
ASYNchronous Communication Communication
protocol (Communication)
AT:
Attention Modem
command prefix (Communication)
AT:
Advanced Technology (IBM)
AT:
Azores Time Timezone:
GMT -2:00
AT&T:
American Telephone and Telegraph
ATA:
Advanced Technology Attachment Peripheral
bus architecture (Hardware)
ATAG:
Attonomously Generate Correlation Tab (Telecommunication)
ATAPI:
Advanced Technology Attached Packet Interface (Hardware)
ATD:
Asynchronous Time Division (Communication)
ATDNet:
Advanced Technology Demonstration NETwork (Network)
ATE:
Automatic Test Equipment
ATEC:
Authorized Technical Education Center (Microsoft)
ATF:
Automated Test Facility
ATG:
Advanced Technology Group
ATI:
Allied Telesyn International Networking
hardware manufacturer (Hardware)
ATL:
Active Template Library (Microsoft)
ATM:
Adobe Type Manager (Software)
(Adobe)
ATM:
Asynchronous Transfer Mode A
standard for switching and routing all types of digital
information,
including video, voice, and data. With ATM, digital information is broken up
into standard-sized
packets,
each with the "address" of its final destination. (Communication)
ATM:
Automatic Teller Machine
ATM:
Air Traffic Management
ATMD:
Asynchronous Transfer Mode Datagram (Communication)
ATP:
Appletalk Transaction Protocol (Communication)
(Apple)
ATPS:
AppleTalk Printing Services (Apple)
ATR:
Advanced Telecommunication Research (Organizations)
ATR:
Automatic Terminal Recognition
ATS:
Apple Terminal Services
ATS:
Administrative Terminal System
ATS:
Asynchronous Time Sharing (Communication)
ATVEF:
Advanced TeleVision Enhancement Forum (Organizations)
ATX:
Advanced Technology extended (Intel)
AU:
Audio File
name extension
AUDIT:
AUtomated Data Input Terminal
AUI:
Attachment Unit Interface
AUP:
Acceptable User Policy
AUX:
AUXiliary
AV:
Anti Virus
AV:
Audio Video
AV:
Authenticity Verification
AVA:
Audio Visual Authoring (IBM)
AVC:
Audio Visual Connection (IBM)
AVC:
Advanced Visual Computing (SGI)
AVD:
Alternating Voice and Data
AVG:
AVeraGe
AVI:
Audio Video Interleaved File
Format
AVR:
Automatic Voice Recognition
AVR:
Automatic Voltage Regulation (Hardware)
AVT:
Applied Voice Technology
AVTK:
Anti Virus ToolKit (Software)
AWC:
Advanced Web Creations
AWDE:
Artus Wireless Data Enhancer (Communication)
(Nokia)
AWE:
Advanced Wave Effects (Creative
Labs)
AWG:
American Wire Gage
AWS:
Advanced Workstations and Systems (IBM)
AWT: Abstract Windows Toolkit (Software)
AX: Architecture eXtended
AXI:
American eXpress Interactive