The Hacker Acronym & Abbreviation Knowledgebase v2.14

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Acronym		Definition	Topics	External Links
A		Ampere
A&SG		Accessories and Supplies Group
A/C		Air Conditioning
A/C		Alternating Current
A/D		Analog to Digital
A/V		Audio/Video
A2DP		(Bluetooth) Advanced Audio Distribution Profile
A2IA		Artificial Intelligence and Image Analysis (usually as A2iA)
AA		(modem) Auto Answer
AA		Application Association
AA		Automatic Adjust
AAA		Aces of ANSI Art
AAA		Any Advice Appreciated
AAA		Authentication, Authorization, and Accounting
AAAAA		American Association Against Acronym Abuse
AAAS		American Association for the Advancement of Science
AAC		Advanced Audio Coding (ISO/IEC 13818-7, ISO/IEC 14496-3)
AACM		Advanced Access Control Models
AAD		Access to Archival Databases
AAF		Advanced Authoring Format
AAFES		Army and Air Force Exchange Service
AAITP		Amdahl Australian Intelligent Tools Program
AAL		ATM Adaptation Layer (protocol 1, 2, 3, 4, 5)
AAM		Automatic Acoustic Management
AAMVANET		American Association of Motor Vehicle Administrators Network
AAR		Automatic Alternate Routing
AARNET		Australian Academic Research Network
AARP		AppleTalk Address Resolution Protocol
AAUI		Apple Attachment Unit Interface
AAX		Automated Attendant eXchange
AB		ABort session
AB2		Anarchy Burger ] [
ABA		American Bankers Association
ABATS		Automatic Bit Access Test System
ABBA		Anti-Big Brother Association (usually as aBBa)
ABBS		Apple Bulletin Board System
ABC		Access Basic Code
ABC		Activity Based Costing
ABC		Atanasoff-Berry Computer
ABCS		Army Battle Command System (network)
ABEX		America Online Business Exchange
ABHC		Average Busy Hour Calls
ABM		Asynchronous Balanced Mode
ABME		Asynchronous Balanced Mode Extended
ABNF		Augmented Backus-Naur Form [RFC 2234]
ABP		Alternate BiPolar
ABR		Area Border Router
ABR		Available Bit Rate
ABS		Alternative Billing Service
ABS		Average Billing Season
ABS		Average Busy Season
ABSBH		Average Busy Season Busy Hour
ABT		ABort Timer
ABT		Answer Back Tone
ABU		Application Business Unit
AC		Access Category
AC		Access Control
AC		Acoustic Coupler
AC		Air Conditioning
AC		Alignment Check
AC		Alternating Current
AC		Application Context
AC		Association Control
AC3		Advanced Cluster Computer Consortium
AC-3		Advanced Cluster Computer Consortium
ACA		Automatic Circuit Assurance
ACAP		Application Configuration Access Protocol
ACB		Annoyance Call Bureau
ACB		Automatic Call-Back
ACBH		Average Consistent Busy Hour
ACC		Application Client Container
ACC		Audio Communications Controller
ACC		Automatic Callback Calling
ACCE		Award for Call Center Excellence
ACCM		Asynchronous Control Character Map
ACCS		Automated Calling Card Service
ACD		Access Control Definition
ACD		Adaptive Call Distributor / Automatic Call Distributor
ACDA		Automatic Call Disposition Analyzer
ACDF		Access Control Decision Function
ACDI		Asynchronous Communication Device Interface
ACDT		Apple Certified Desktop Technician (replaced by Apple Certified Mac Technician)
ACE		Access Control Entry / Access Control Entries
ACE		Adaptive Communication Environment
ACE		Advanced Computing Environment
ACE		Adverse Channel Enhancement
ACE		American Council on Education
ACE		Automatic Calling Equipment
ACEF		Access Control Enforcement Function
ACEI		Autorité canadienne pour les enregistrements Internet
ACET		Advisory Committee on Electronics and Telecommunications
ACF		Advanced Communications Function
ACF/NCP		Advanced Communications Function / Network Control Program
ACF/TCAM		Advanced Communications Function / TeleCommunications Access Method
ACF/VTAM		Advanced Communications Function / Virtual Telecommunications Access Method
ACF/VTAME		Advanced Communications Function / Virtual Telecommunications Access Method Entry
ACFI		Association canadienne des fournisseurs Internet
ACH		Attempt per Circuit per Hour
ACH		Automated Clearing House
ACHDS		Apple Certified Help Desk Specialist
ACI		Access Control Information
ACID		ANSI Creators in Demand (usually ACiD)
ACID		Atomic/Consistent/Isolated/Durable (test)
ACK		ACKnowledge (ASCII)
ACL		Access Control List
ACL		Advanced CMOS Logic
ACL		Association for Computational Linguistics
ACLU		American Civil Liberties Union
ACM		Address Complete Message
ACM		Association for Computing Machinery
ACM		Audio Compression Manager
ACMA		Apple Certified Media Administrator
ACMS		Application Control Management System
ACMT		Apple Certified Mac Technician
ACN		Area Code Number
ACOF		Attendant Control Of Facilities
ACP		Access Control Points
ACP		Action Point
ACP		Administrative Challenge Panels
ACP		Allied Communications Publication
ACP		Americans for Computer Privacy
ACP		Ancillary Control Program
ACP		Atomic Commitment Protocol
ACPI		Advanced Configuration and Power Interface
ACPM		Association Control Protocol Machine
ACPT		Apple Certified Portable Technician
ACQ		All Call Query
ACR		Abandon Call and Retry
ACR		Actual Cell Rate
ACR		Advanced Communication Riser
ACRONYM		Abbreviated Coded Rendition Of Name Yielding Meaning
ACS		Access Control Store
ACS		Application Control Services
ACS		Asynchronous Communications Server
ACSA		Apple Certified System Administrator
ACSE		Association Control Service Element
ACSI		American Customer Satisfaction Index
ACSL		Association Control Service eLement
ACSNET		Academic Computing Services Network
ACSNET		Australian Computer Science Network
ACSR		Algebra of Communicating Shared Resources
ACSU		Advanced (T-1) Channel Service Unit
ACT		Application Center for Technology
ACTA		America's Carriers Telecommunications Association
ACTA		Anti-Counterfeiting Trade Agreement
ACTAS		Alliance of Computer-based Telephony Application Suppliers
ACTC		Apple Certified Technical Coordinator
ACTGA		Attendant Control of Trunk Group Access
ACTIUS		Association of Computer Telephone Integration Users and Suppliers
ACTLU		ACTivate Logical Unit
ACTPU		ACTivate Physical Unit
ACTS		Advanced Communications Technology Satellite
ACTS		Automated Coin Toll Service
ACTS		Automatic Coin Telephone System
ACU		Alarm Control Unit
ACU		Automatic Call Unit / AutoCall Unit / Automatic Calling Unit
ACUTA		Association of College and University Telecommunications Administrators
AD		Active Directory
AD		Activity Discard
AD		Administrative Domain
AD		Application Development
AD		Authorized Dealers
ADA		Activity Discard Acknowledgment
ADA		Automatic Data Acquisition (programming language)
ADAP		Auto Discovery / Auto Purge
ADAPSO		Association of Data Processing Service Organizations
ADAS		Advanced Directory Assistance System
ADB		Apple Desktop Bus
ADB		AppWare Distributed Bus architecture
ADC		Active Database Connector
ADC		Analog-to-Digital Converter
ADC		Analysis Date Concentrator
ADC		Automated Data Collection
ADCCP		Advanced Data Communications Control Procedure
ADCI		Automatic Display Call Indicator
ADCP		Avesta Device Control Protocol
ADCS		Active Directory Certificate Services (sometimes as AD CS)
ADCU		Association of Data Communications Users
ADD		AGP Digital Display
ADD		Authorized Digital Dealers
ADDMD		Administrative Directory Management Domain
ADDS		Active Directory Domain Services (sometimes as AD DS)
ADE		Application Development Environment
ADF		Access control Decision Function
ADF		Automatic Document Feeder
ADG		Authorized Distributor Group
ADI		Access control Decision Information
ADI		Application DIrectory
ADI		Autodesk Device Interface
ADLT		Assertion Definition Language Translator (toolset)
ADM		Adaptive Delta Modulation
ADM		Add-Drop MultiPlex
ADMD		Administration Management Domain
ADN		Abbreviated Dialing Number
ADN		Any Day Now
ADO		ActiveX Data Objects
ADOCE		ActiveX Data Objects for WindowsCE
ADP		Active Distribution Panel
ADP		Automatic Data Processing
ADPCM		Adaptive Differential Pulse Code Modulation
ADR		Alternative Dispute Resolution
ADS		Advanced Digital System
ADS		Audio Distribution System
ADS		Auto Data Switch
ADS		Automated Deployment Services
ADS		Auxiliary Data System
ADSI		Active Directory Service Interface
ADSI		Analog Display Services Interface
ADSL		Asymmetric Digital Subscriber Line
ADSP		AppleTalk Data Stream Protocol
ADTS		Automated Digital Terminal System
ADU		Application Definition Utility
ADU		Automatic Duplexing Unit
ADVFS		Advanced File System (usually as AdvFS)
AE		Activity End
AE		Application Entity
AE		ASCII Express
AEA		Activity Entity Acknowledgment
AEA		American Electronics Association
AEA		American Entrepreneurs Association
AEB		Analog Expansion Bus
AEC		Acoustic Echo Cancellation / Adaptive Echo Cancellation
AEC		Architecture / Engineering / Construction (industry)
AED		Automatic Email Distribution
AEF		Access control Enforcement Function
AEF		Address Extension Facility
AEG		Application Expert Group
AEGIS		AIDS Education and General Information Service
AEI		Automatic Equipment Identification
AEIMP		Apple Event Interprocess Messaging Protocol
AEP		AppleTalk Echo Protocol
AEP		Application Environment Profile
AES		Advanced Encryption Standard
AES		Audio Engineering Society
AET		Application Entity Title
AF		Address Field
AF		Audio Frequency
AF		Auxiliary (carry) Flag
AFACTS		Automatic Facilities Test System
AFADS		Automatic Force Adjustment Data System
AFAIC		As Far As I'm Concerned
AFAIK		As Far As I Know
AFAYC		As Far As You're Concerned
AFC		Application Foundation Classes
AFC		Automatic Frequency Control
AFCP		Avesta Flow Control Protocol
AFDC		Aid to Families with Dependent Children
AFDW		Active Framework for Data Warehousing
AFI		AppleTalk Filing Interface
AFI		Authority and Format Identifier
AFI		Automated Fingerprint Identification
AFII		Association for Font Information Interchange
AFIN		Air Force Information Network
AFIPS		American Federation of Information Processing Societies
AFIRM		Automated Fingerprint Image Reporting and Match (system)
AFIS		Automated Fingerprint Identification System
AFK		Away From Keyboard
AFNOR		Association Francaise de Normalisation
AFOAF		A Friend Of A Friend
AFP		Advanced Function Printing
AFP		AppleTalk Filing Protocol
AFPA		American Forest and Paper Association
AFRP		ARCNET Fragmentation Protocol
AFS		Andrew File System
AFSK		Audio Frequency Shift Keying / Automatic Frequency Shift Keying
AFT		Application File Transfer
AG/EEE		Above Ground Electronic Equipment Enclosures
AGBH		Average Group Busy Hour
AGC		Automatic Gain Control
AGEEE		Above Ground Electronic Equipment Enclosures
AGI		Association for Geographic Information
AGNIC		Agriculture Network Information Center
AGP		Accelerated Graphics Port
AGP		Advanced Graphics Port
AGPM		Advanced Group Policy Management
AGS		Asynchronous Gateway Server
AH		Authentication Header
AHAH		Asynchronous HTML And HTTP (microformat)
AHCI		Advanced Host Controller Interface
AHT		Average Holding Times
AI		Artificial Intelligence
AI		As If
AI		Authentication Information
AIA		Aerospace Industries Association
AIA		Application Integration Architecture
AIAG		Automotive Industry Action Group
AIC		Automatic Intercept Center
AICC		Automatic Intercept Communications Controller
AICPA		American Institute of Certified Public Accountants
AIDC		Automatic Identification and Data Capture
AIDC		Automatic Identification and Data Collection
AIDS		Apple Infected Disk Syndrome
AIF		Architected Interface Facility
AIFS		Arbitration Inter-Frame Spacing
AII		Active Input Interface
AIIM		Association for Information and Image Management
AIM		Advanced Interconnect Modeling
AIM		Analog Intensity Modulation
AIM		AOL Instant Messenger
AIM		Asynchronous Interface Module
AIM		ATM Inverse Multiplexer
AIM		Automatic Identification Manufacturers (specifications)
AIML		Artificial Intelligence Markup Language
AIMM		Active Input Method Manager
AIMSX		Advanced Information Management System
AIN		Advanced Intelligent Network
AIO		All-In-One (device)
AIOD		Automatic Identification of Outward Dialing
AIP		Association of Internet Professionals
AIR		Additive Increase Rate
AIR		Apple Internet Router
AIRA		American Internet Registrants Association
AIRS		Advanced Internet Recruitment Strategies
AIS		Alarm Indication Signal / Alarm Indication System
AIS		Automated Information System
AIS		Automatic Intercept System
AISE		Alarm Indication Signal External
AIS-E		Alarm Indication Signal - External
AISI		As I See It
AIT		Advanced Intelligent Tape (technology)
AIT		Automatic Identification Technology
AITRC		Applied Information Technologies Research Center
AITS		[DISA/DARPA] Advanced Information Technology System
AIW		As It Were / As It Was
AIX		[IBM] Advanced Interactive Executive
AJAX		Asynchronous Javascript And XML
AJP		Apache JServ Protocol
AK		Acknowledge
AKA		Also Known As
AL		Account Librarian (MPE)
AL		Application Layer
AL		Arbitrated Loop
ALAP		ARCTalk Link Access Protocol
ALB		Analog LoopBack
ALBO		Automatic Line BuildOut
ALDC		Adaptive Lossless Data Compression
ALFE		Analog Line Front End
ALG		Application Layer Gateway
ALGOL		Algorithmic computer Language
ALI		Automatic Location Identification / Automatic Location Information
ALIT		Automatic Line Insulation Testing
ALIWEB		Archie Like Indexing in the WEB
ALM		Application Lifecycle Management
ALM		Application Loadable Module / AppWare Loadable Module
ALO		At Least Once
ALP		Abstract Local Primitive
ALPC		Adaptive Link Power Control
ALPR		Automated License Plate Recognition
ALPS		Auto Laser Pulse Saving
ALRU		Automatic Line Record Update
ALS		Application Layer Structure
ALS		Automated List Service
ALSA		Advanced Linux Sound Architecture
ALT		Alternate (key)
ALU		Application Layer User
ALU		Arithmetic Logic Unit
ALUA		Asymmetric Logical Unit Access
AM		Accounting Management
AM		Active Monitor
AM		Administrative Module
AM		Agile Modeling
AM		Amplitude Modulation
AM		Authorization Management
AM&AACM		Authorization Management & Advanced Access Control Models (previously Role Based Access Control)
AM/PSK		Amplitude Modulation with Phase Shift Keying
AMA		Advanced Manageability Alliance
AMA		Automatic Message Accounting
AMACS		Automatic Message Accounting Collection System
AMARC		Automatic Message Accounting Recording Center
AMASE		Automatic Message Accounting Standard Entry
AMAST		Algebraic Methodology And Software Technology
AMAT		Automatic Message Accounting Transmitter
AMATPS		Automatic Message Accounting TeleProcessing System
AMBER		America's Missing: Broadcast Emergency Response
AMC		Area Management Center
AMCD		Active Matrix Color Display
AMD		Advanced Micro Devices
AMD		Air Movement Device (aka Fan)
AMDD		Agile Model-Driven Development
AME		Advanced Metal Evaporated (media)
AME		Asynchronous Modem Eliminator
AMERITECH		American Information Technologies Corporation
AMF		Account Metering Function
AMF		Adios, My Friend
AMH		Application Message Handling
AMI		Alternate Mark Inversion
AMI		Amazon Machine Image
AMI		American Megatrends Incorporated
AMI		Asynchronous Method Invocation
AMII		Agile Manufacturing Information Infrastructure
AMIS		Atari Message and Information System
AMIS		Audio Messaging Interchange Standard
AMM		Agent Management Module
AMMA		Advanced Memory Management Architecture
AMOLED		Active Matrix Organic Light Emitting Diode
AMP		Active Monitor Present
AMP		Ampere
AMPL		AT&T Mathematical Programming Language
AMPS		Abstract Meta-Physical Speculation
AMPS		Advanced Mobile Phone Service
AMPS		Advanced Mobile Phone System
AMQP		Advanced Message Queuing Protocol
AMR		Adaptive Multi-Rate
AMR		Audio Modem Riser
AMRWB		Adaptive Multi-Rate WideBand
AMR-WB		Adaptive Multi-Rate WideBand
AMS		Access Method Services
AMSP		Association of Microsoft Solutions Providers
AMT		Address Mapping Table
AMU		Atomic Mass Unit
AMVFT		Amplitude Modulation Voice Frequency Telegraph
AMW		America's Most Wanted (TV program)
AMWI		Active Message Waiting Indicator
AN		Associated Number
ANA		Automatic Number Announcement
ANAC		Automatic Number Announcement Circuit
ANBH		Average Network Busy Hour
ANC		Active Noise Cancellation
ANC		All Number Calling
ANCS		AT&T NetWare Connect Services network
AND		Automatic Network Dialing
ANDF		(OSI) Architecture-Neutral Distribution Format
ANE		Anarchy 'N' Explosives
ANF		AppleTalk Networking Forum
ANFSCD		And Now For Something Completely Different
ANGLE		Almost Native Graphics Layer Engine
ANI		Automatic Number Identification
ANIF		Automatic Number Identification Failure
ANM		Advanced Network Management
ANN		Artificial Neural Network
ANN		Auditing Network Needs
ANR		Application Not Responding
ANS		Advanced Network & Services
ANS		American National Standard
ANS		Automatic Network Shutdown
ANSC		American National Standards Committee
ANSI		American National Standards Institute
ANTC		Advanced Networking Test Center
ANX		Automotive Network Exchange
AOCE		Apple Open Collaborative Environment
AOI		Active Output Interface
AOL		America Online (sometimes as Aol.)
AOM		Application OSI Management
AOM		Aspect Oriented Middleware
AON		Active Optical Network
AOP		Aspect-Oriented Programming
AOP		Association of Online Professionals
AOR		Application Owning Region
AOS		Alternate Operator Service
AOS		Alternate Option Selection
AOSIP		Airline Open Systems Interconnection Profile
AOSS		Auxiliary Operator Service System
AOTD		Art Of Technology Digest (magazine)
AOW		Asia and Oceania Workshop
AOWS		Asia Oceanic WorkShop
AP		Access Point
AP		Accounts Payable
AP		Adjunct Processor
AP		Application Process
AP		Application Profile
AP		Attached Processor
APA		Adaptive Packet Assembly
APA		All Points Addressable (data streams)
APAR		Authorized Program Analysis Report
APB		Analytical Processing Benchmark (usually as APB-1)
APB-1		Analytical Processing Benchmark 1
APC		Adaptive Predictive Coding
APC		AMARC Protocol Converter
APC		American Power Conversion
APC		Asynchronous Procedure Call
APC		Automatic Power Conversion
APCC		American Public Communications Council
APCI		Application - layer Protocol Control Information
APD		Avalanche PhotoDiode
APDA		Apple Programmers and Developers Association
APDU		Application Protocol Data Unit
APF		Advanced Patterning Film
APF		All PINs Fail
API		American Pirate Industries (sometimes as A.P.I)
API		Application Programming Interface
APIC		Advanced Programmable Interrupt Controller
APIPA		Automatic Private IP Addressing
APL		A Programming Language
APLT		Advanced Private Line Termination
APM		Advanced Power Management
APNG		Animated Portable Network Graphics
APNG		Asia Pacific Networking Group
APNIC		Asia Pacific Network Information Centre
APO		Army Post Office
APP		Application
APP		Application Portability Profile
APPC		Advanced Program to Program Communications
APPC/PC		Advanced Program-to-Program Communications / Personal Computers
APPI		Advanced Program-to-Program Internetworking
APPN		Advanced Peer-to-Peer Network
APR		Annual Percentage Rate
APR		Apache Portable Runtime
APR		Automatic Picture Replacement
APS		Advanced Photo System
APS		Application Processing Services
APS		Automatic Protection Switching system
APSD		Automatic Power Save Delivery
APT		Advanced Persistent Threat
APT		American Phone Terrorists
APTS		Advanced Public Transportation
APXS		Apache eXtenSion
AQT		Analytical Query Time
AR		Accounts Receivable
AR		Activity Resume
AR		Alarm Report
AR		Augmented Reality
ARA		Apple Remote Access (protocol)
ARA		Attribute Registration Authority
ARAP		AppleTalk Remote Access Protocol
ARB		Application Review Board
ARC		Advanced RISC Computing
ARC		Archival Research Catalog
ARC		Attached Resource Computer
ARC		Audio Response Controller
ARC		Automated Reference Counting
ARCHIE		(Internet) ARCHIvE
ARD		Application Remote Database
ARD		Automatic RingDown
ARDIS		Advanced National Radio Data Service
ARE		Acronym-Rich Environment
ARE		All Routes Explorer
ARF		Abort Retry Fail
ARF		Abuse Reporting Format
ARF		Alarm Reporting Function
ARF		Asset Reporting Format
ARGO		A Really Good Open systems interconnection
ARGUS		Audit Record Generation and Utilization System
ARI		Address Recognized Indicator bit
ARIA		(WAI) Accessible Rich Internet Application
ARIB		Association of Radio Industry and Businesses
ARIES		ATM Research and Industrial Enterprise Study
ARIN		American Registry for Internet Numbers
ARIS		Audichron Recorded Information System
ARL		Access Rights List
ARL		Adjusted Ring Length
ARL		Attendant Release Loop
ARLL		Advanced Run Length Limited
ARM		Adjustable Rate Mortgage
ARM		Application Response Measurement (API)
ARM		Asynchronous Response Mode
ARMA		Association for Records Managers and Administrators
ARN		Advanced Remote Node
ARO		After Receipt of Order
ARP		Address Resolution Protocol
ARPA		Advanced Research Projects Agency
ARPANET		Advanced Research Projects Agency NETwork
ARQ		Automatic Repeat Request
ARR		Attributes for Representing Relationships
ARR		Automatic Repeat Request
ARRA		American Recovery and Reinvestment Act (of 2009)
ARS		Alternate Route Selection / Automatic Route Selection
ARSB		Automated Repair Service Bureau
ART		Adaptive Resonance Theory
ART		Asynchronous Remote Takeover
ART		Automatic Revision Tracking
ARTT		Asynchronous Remote Takeover Terminal
ARU		Audio Response Unit
AS		Action Semantics
AS		Activity Start
AS		Application System
AS		Authentication Service
AS		Autonomous System
ASA		(Microsoft) Active Server Application (usually as .asa file extension)
ASA		Advanced SCSI Architecture
ASACP		Association of Sites Advocating Child Protection
ASAI		Adjunct Switch Application Interface
ASAP		As Soon As Possible
ASB		Asynchronous Balanced mode
ASC		Accredited Standards Committee
ASC		Authorized Support Centers
ASCII		American Standard Code for Information Interchange
ASD		Action Semantic Description
ASD		Advanced Semiconductor Development
ASDC		Abstract Service Definition Convention
ASDU		Application - layer Service Data Unit
ASE		Amplified Spontaneous Emission
ASE		Application Service Element
ASE		Application Specific Extension
ASF		Advanced Streaming Format
ASF		Apache Software Foundation
ASI		Adapter Support Interface
ASI		Alternate Space Inversion
ASIC		Application Specific Integrated Circuit
ASIC		Australian Securities and Investment Commission
ASIO		Audio Stream Input Output
ASIS		American Society for Industrial Security
ASIS		American Society for Information Science
ASK		Amplitude Shift Keying
ASL		ACPI Source Language
ASL		Action Semantic Language
ASL		Adaptive Speed Leveling
ASL		Alpha Systems Laboratories
ASLR		Address Space Layout Randomization
ASM		Abstract State Machines
ASMP		Asymmetrical Multi-Processing
ASN		Abstract Syntax Notation
ASN		Advance Shipping Notice / Advance Ship Notice
ASN.1		Abstract Syntax Notation One
ASO		Application Service Object
ASOC		Administrative Service Oversight Center
ASP		Abstract Service Primitive
ASP		Active Server Pages
ASP		AppleTalk Session Protocol
ASP		Application Service Provider
ASP		Association of Software Professionals (previously Association of Shareware Professionals)
ASPEN		Automatic System for Performance Evaluation of the Network
ASPI		Advanced SCSI Programming Interface
ASR		Access Service Request
ASR		Attack Surface Reduction
ASR		Automatic Send/Receive
ASR		Automatic Speech Recognition
ASR		Automatic System Recovery / Automated System Recovery
ASSP		Application Specific Standard Product
ASTM		American Society for Testing Materials
ASTRAL		Association for Strategic Token Ring Advancement and Leadership
ASV		Average System Value
ASYNC		Asynchronous transmission
AT		Access Tandem
AT		Advanced Technology
AT		ATtention (modem commands)
AT&T		American Telephone and Telegraph
ATA		Advanced Technology Architecture
ATA		American Telemarketing Association
ATA		ARCnet Trade Association
ATA		AT Attachment
ATAG		(WAI) Authoring Tool Accessibility Guidelines
ATAPI		AT Attachment Packet Interface
ATAS		Analog Test Access System
ATASPI		AT Advanced SCSI Programming Interface
ATB		All The Best
ATB		All Trunks Busy
ATC		Address Translation Control
ATC		Allbase / Turbo Connect
ATC		Automatic Transmission Control
ATD		Association of Telecommunications Dealers
ATD		Asynchronous Time Division
ATD		Authorized Terminal Distributor
ATDM		Asynchronous Time Division Multiplexing
ATDP		Attention Dial Pulse
ATDT		Attention Dial Tone
ATE		Asynchronous Terminal Emulation
ATE		ATM Terminating Equipment
ATF		Automatic Track Following
ATH		Abbreviated Trouble History
ATHS		American Technology Honor Society
ATI		Activist's Times Incorporated
ATI		Array Technology Inc.
ATI		Automatic Task Initiation
ATI		Automatic Test Inhibit
ATIS		Advanced Traveler Information Systems
ATIS		Alliance for Telecommunications Industry Solutions
ATIS		Automatic Transmitter Identification System
ATL		Active Template Library
ATLA		Another Three Letter Acronym
ATM		Abstract Test Method
ATM		Adobe Type Manager
ATM		Asynchronous Transfer Mode
ATM		At The Moment
ATM		Automated Teller Machine
ATMARP		Asynchronous Transfer Mode Address Resolution Protocol
ATME		Automatic Transmission Measuring Equipment
ATMP		Ascend Tunnel Management Protocol
ATMS		Automated Trunk Measurement System
ATO		Authority To Operate
ATP		All Tests Pass
ATP		AppleTalk Transaction Protocol
ATP		Application Transaction Processing
ATPS		AppleTalk Print Services
ATQ		AppleTalk Transition Queue
ATR		Alternate Trunk Routing
ATR		Answer To Reset
ATR		Automatic Target Recognition
ATRS		Automated Trouble Reporting System
ATS		Abstract Test Suite
ATS		Across The Street
ATS		Asian Test Symposium
ATSC		Advanced Television Systems Committee
ATSE		Application Timesharing Software Engineering
ATT		Applied Transmission Technologies
ATTC		Automatic Transmission Test and Control circuit
ATTIS		American Telephone and Telegraph Information Systems
ATV		Advanced Television
ATX		Advanced Technology Extended
AU		Access Unit / Adaptive Unit / Administrative Unit
AUC		AUthentication Certificate
AUDIX		Audio Information eXchange
AUI		Attachment Unit Interface / Auxiliary Unit Interface
AUP		Acceptable Use Policy
AURP		AppleTalk Update-Based Routing Protocol
AUTHR		Authorization Response
AUTODIN		AUTOmatic DIgital Network
AUTOSEVCOM		Automatic Secure Voice Communications
AUTOVON		Automatic Voice Network
AUU		ATM User-to-User
AUXF		Auxiliary Frame
AV		Anti-Virus
AV		Audio Visual (equipment)
AV		Audio/Video (sometimes as A/V)
AV		Authentication Vector
AVA		Attribute Value Assertion
AVC		Advanced Video Coding (H.264)
AVC		Audio Visual Control
AVCS		Advanced Vehicle Control Systems
AVCTP		Audio Visual Control Transport Protocol
AVD		Alternate Voice Data
AVDL		Application Vulnerability Description Language
AVDTP		Audio Visual Distribution Transport Protocol
AVI		Advanced Visual Interface
AVI		Audio Video Interleave / Audio Video Interleaved
AVI		Automatic Vehicle Identification
AVIEN		Anti-Virus Information Exchange Network
AVL		Adelson - Velskii - Landis (programming method)
AVN		Automated Voice Network
AVOD		Advertising Video on Demand
AVOD		Audio and Video on Demand
AVR		Automatic Voltage Regulation
AVR		Avid Video Resolution
AVS		Adult Verification Service
AVS		Application Visualization System
AVSSCS		Audio Visual Service Specific Convergence Sublayer (ATM Forum)
AVT		Application Virtual Terminal
AVT		Architecture Verification Test
AWE		(Windows) Address Windowing Extensions
AWG		American Wire Gauge
AWGN		Additive White Gaussian Noise
AWK		al Aho, peter Weinberger, brian Keringham (programming language)
AWM		Advanced Wave Memory
AWOL		Absent Without Leave
AWS		Administration WorkStation
AWS		Amazon Web Services
AWT		Abstract Window Toolkit (library)
AZ		Availability Zone

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