A/D
(Analog to Digital)

A/UX
(Apple's UniX)

A3D
(Aureal 3-Dimensional)

AA
(Auto Answer)

AAC
(Advanced Audio Coding)

AAT
(Average Access Time)

ABC

ABC ALGOL

ABCL/1
(An object Based Concurrent Language)

ABEND
(Abnormal END)

ABI
(Application Binary Interface)

ABIOS
(Advanced BIOS)

ABIST
(Automatic Built-In Self-Test)

ABLE

ABM
(Asynchronous Balanced Mode)

Abort
(Aborto, abortito)

ABR
(Authomatic Baud Rate detection)

ABSET

Absolute path

Abstract machine

Abstract syntax tree

AC
(Alternating Current)

AC 97

AC3
(Audio Compression 3)

Acceleratore

Accent

Acceptable Use Policy

Access Control List

Access Point

Access Time
(Tempo di accesso)

Accesso remoto

Accoppiatore acustico

Account

Accounting File

Accounting Management

ACCU
(Association of C and C++ Users)

Accumulation Buffer

Accumulatore

ACE
(Advanced Computing Environment)

ACE
(Automatic Contrast Enhancement)

ACF
(Advanced Communications Function)

ACF/NCP
(Advanced Communication Function/Network Control Program)

ACH
(Automated Clearing House)

ACIA
(Asynchronous Communications Interface Adapter)

ACIS
(Andy, Charles, Ian's System)

ACK
(ACKnowledge)

ACL
(Access Control List)

ACM
(Addressed Call Mode)

ACOM

Acorn Computer Limited

ACPI
(Advanced Configuration and Power Interface)

Acrobat

Acronimo

Act One

ACT++

Act1

Act2

Act3

Actalk

Active desktop

ActiveMovie

ActiveX

Actor

Actra

Actus

AD
(Administrative Domain)

Ad Hoc Mode

Ada

Ada/Ed

Adabas

Adam7

Adamo

Adaplan

Adaplex

Adapter

Adaptive answering

ADB
(Apple's Desktop Bus)

ADC
(Analogue to Digital Converter)

ADCCP
(Advanced Data Communications Control Protocol)

Additive Blending

Address

Address bus

Address mask

ADES

ADF
(Automatic Document Feeder)

ADFS
(Acorn advanced Disk Filing System)

Aditi

Adjacency

ADL
(Adventure Definition Language)

AdLog

Admin

ADO
(ActiveX Data Object)

Adobe Systems Inc.

ADPCM
(Adaptive Digital Pulse Code Modulation)

ADR
(Advanced Digital Recording)

ADSL
(Asymmetric Digital Subscriber Line)

ADSL Lite

ADSP
(Appletalk Data Stream Protocol)

ADT
(Abstract Data Type)

ADTP
(Asus Dynamic Thermal Dissipation)

Advanced RISC Machines Ltd

Advent

ADVSYS

Adwords

AED
(Automated Engineering Design - ALGOL Extended for Design)

Aegis

AES
(Application Environment Specification)

AES
(Advanced Encryption Standard)

AESOP
(An Evolutionary System for On-line Programming)

AFAIK
(As Far As I know)

AFC
(AntiFerromagnetically Couplet)

AFC Media

AFFS
(Amiga Fast File System)

AFJ
(April Fool's Joke)

AFK
(Away From Keyboard)

AFP
(Advanced Function Presentation/Advanced Function Printing)

AFP
(Appletalk Filing Protocol)

AFR
(Alternate Frame Rendering)

AFS
(Acer Fast file System)

AFT
(Automated Funds Transfer)

Agent Name

Agente

Aggiornamento

AGP
(Accelerated Graphics Port)

AGP Pro

AGTL
(Assisted Gunning Transceiver Logic)

AI
(Artificial Intelligence)

AIFF
(Audio IFF)

AIIP
(Associazione Italiana Internet Provider)

AIM
(AOL Instant Messenger)

A-IN

AIP
(Asynchronous Information Protection)

AIPA
(Autorit� per l'Informatica nella Pubblica Amministrazione)

AIT
(Advanced Intelligent Tape)

AIX
(Advanced Interactive eXecutive)

AKA
(Also Known As)

Aladdin III

Aladdin IV

Aladdin Systems

Aladdin V

ALB
(Adaptive Load Balancing)

ALC
(Assembly Language Compiler)

ALDC
(Adaptive Lossless Data Compression)

Alfa

Alfa Blending

Alfanumerico

ALG
(Application Layer Gateway)

ALGOL 58

ALGOL 60
(ALGorithmic Oriented Language)

ALGOL 68

Algoritmo

Alhoa Net

ALi
(Acer Laboratories, Inc.)

Alias

Aliasing

Alimentatore

Allegato

All-in-one

Alluminio

Alpha

Alpha Chanel

Alpha EV7

Alpha EV8

Alt

Alta Vista

Altair 8800

Altair Basic

Altavista

ALU
(Arithmetic and Logic Unit)

Aluminium book

AM
(Amplitude Modulation)

AM386

AM486

AM80286

AM8086

AM8088

AMD
(Advanced Micro Devices Inc.)

AMD
(Administration Management Domain)

AMD-750

Amiga-DOS

AMN
(Abstract Machine Notation)

Amoeba

AMR
(Audio Modem Riser)

AMSTRAD
(Alan Michael Sugar TRADing)

Analogico

Anamorfico

Anchor

And

ANDF
(Architecture Neutral Distribution Format)

Angolo di visione

Anisotropic Filtering
(Filtro anisotropico)

Annulla

Anonymizer

Anonymous FTP
(FTP anonimo)

ANSA
(Advanced Network Systems Architecture)

ANSI

ANSI
(American National Standards Institute)

Answer mode

Anteprima di stampa

Anti-aliasing

Anti-Spamming

Antivirus

AOD
(Advanced Optical Disc)

AOL
(American On Line)

A-OUT

AP
(Access Point)

APC
(Automatic Power Control)

APDA
(Apple Programmers & Developpers Association)

Aperture grille

Aperture Size

API
(Application Programming Interface)

APM
(Advanced Power Management)

Apollo 113Aro

Apollo KX133

Apollo MVP3

Apollo MVP4

Apollo Pro

Apollo Pro 133

Apollo Pro 133A

Apollo Pro II

Apollo Pro MVP3

Apollo Pro Plus

APPC
(Advanced Program-to-Program Communications)

Apple

Apple Basic

Apple I

Apple II

Apple III

Applet

AppleTalk

Appliance
(Dispositivo)

Application framework

APPN
(Advanced Peer-to-Peer Networking)

APS
(Anonymous posting server)

APSE
(Ada Programming Support Environment)

APU
(Audio Processing Unit)

ARB
(Architectural Review Board)

Archie
(ARCHIvE)

ARCNet
(Attached-Resource Computing architecture NETwork)

ARCS
(Astra Return Channel System)

Area visibile

Argomento

Arianna

ARM
(Active Reconfiguring Message)

ARM
(Advanced Risc Machine)

ARMM
(Automated Retroactive Minimal Moderation)

ARP
(Address Resolution Protocol)

ARPANET
(Advanced Research Project Agency NETwork)

ARQ
(Automatic Repeat Request)

Array

ASAP
(As Soon As Possible)

ASB
(Advanced System Buffering)

ASCII
(American Standard Code for Information Interchange)

ASDL
(Abstract-Type and Scheme-Definition Language)

ASE
(Active Scripting Engine)

ASF
(Advanced Streaming Format)

ASIC
(Application Specific Integrated Circuit)

Asincrona

ASIO
(Audio Streaming Input Outup)

ASIO2
(Audio Streaming In Out 2)

ASM

ASP
(Active Server Page)

ASP
(Application Server Provider)

Aspect Ratio

ASPI
(Advanced SCSI Periphal Interface)

ASR
(Automated Speech Recognition)

ASR
(Automatic Send Receive)

Assembler

Assembly

AST
(Abstract Syntax Tree)

AT
(ATtention)

AT
(Advanced Technology)

ATA
(Advanced Technology Attachment)

ATA/IDE

ATA-100

ATA-2

ATA-66

ATAPI
(AT Attachment Packet Interface)

ATC
(Advanced Transfer Cache)

ATF
(Anisotropic Texture Filtering)

Athlon

ATIP
(Absolute Time In Pregroove)

ATM
(Asynchronous Transfer Mode)

ATM
(Automatic Teller Machine)

ATM
(Adobe Type Manager)

ATRAC
(Adaptive TRansform Acoustic Coding)

Attachment
(Allegato)

ATX

ATYS
(Anything You Say)

AU
(Arithmetic Unit)

Audio

Audio posizionale

AudioCodec 97

Audit

Audit trail

AUI
(Adaptable User Interface)

AUI
(Attachment Unit Interface)

AUP
(Acceptable Use Policy)

Autenticazione

Authoring

Autodiagnostica

AUX

AV
(Audio Video)

Avatar

AVI
(Audio Video Interleaved)

AVLS
(Auto Volume Limiter System)

Avvio

AWK
(Aho, Weinberger, Kernighan)

Aztec

ABEND

Abnormal END

Interruzione improvvisa di un software, sinonimo di crash. Il nome deriva da un messaggio d'errore del IBM 360.