A

• A+ Certification

• Abort

• Absolute Address

• Abstract Syntax

• Abstract Syntax Notation One (ASN.1)

• Abuse of Privilege

• Accelerated Hub Architecture (AHA)

• Accelerator board

• Acceptance Criteria

• Acceptance Testing

• Access Bus

• Access Control

• Access Control List (ACL)

• Access Method

• Access Operation

• Access or Direct Access

• Access Router

• Access Time

• Accessibility Testing

• Account

• Account

• Accumlater

• Accuracy Testing

• ACK (Acknowledgement )

• Acoustic coupler

• Action Entry

• Active Monitor

• Ad hoc Testing

• Address Bus

• Address Mode

• Address Register

• Address Space

• Address

• Agent

• AGP (Accelerated Graphics Port)

• Algorithm

• Alpha Testing

• Alphanumeric

• Analog Computer

• Analog Transmission

• Anonymous FTP

• ANSI Compatible

• ANSI

• Antenna

• APF (Apple Talk Filing)

• API (Application Program Interface)

• APPC

• Application Layer

• Application Level Firewall

• Application Level Firewall (Application Gateway)

• Application Processor

• ARCNET

• Argument

• Arithmetic And Logical Unit

• Arithmetic Fixed Point

• Arithmetic Floating Point

• Arithmetic Operations

• ARITHMETIC OPERATORS

• Arithmetic Operators

• ARP

• Array Element

• Array Processor

• Array

•  Artificial Intelligence (AI)

• ASCII File

•  ASCII

•  Assembler

•  Assembly Language

•  Associative Memory

• Asynchronous Communication

• Asynchronous Routing

•  Asynchronous Timing

• Asynchronous Transfer Mode

•  Asynchronous Transmission

• ATM Switch

• Attenuation

• Audit Trail

• Authentication Token

•  Authentication

• Authorization

•  Autoindexing

• Automatic Teller Machine (ATM)