- Aperture grille
- A series of vertical strips at the viewing end of the CRT.
- API
- see Application program interface
- Application program interface (API)
- A set of standard software interrupts, used to initiate contact with underlying
operating systems or networks.
- For 3D programming - the software that lets the 3D program communicate with a 3D
graphics board.
- Application Software
- the instructions that enable the computer process your data. For Example, Word
processing, cost estimating, accounting tasks.
- ARCnet (Attached Resources Computing)
- A networking system using a token-passing bus architecture.
- Arithmetic & Logic Unit (ALU)
- ALU does comparisons, addition, subtraction, multiplication and division, fixed and
floating point arithmetic when requested by CPU
- Arithmetic overflow
- Condition that exists when a result of an arithmetic operation exceeds the storage
space.
- Artificial Intelligence
- attempts to develop computer systems that can mimic or simulate human thought processes
and actions
- Artificial Reality
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- Asynchronous
- A method of transmission in which the time intervals between characters do not have to
be equal. Single bytes are sent.
- Asynchronous transfer mode (ATM)
- A dedicated connection switching technology that organises digital data
into 53-byte cells or packets and transmits them over a medium using digital
signal technology.
- ASCII
- see American Standard Code for Information Interchange
- ATM
- see Asynchronous transfer mode
- Audit
- an examination performed for the purposes of evaluating; Reliability of information,
efficiency & effectiveness of the system, internal controls, financial accounts (show
a 'true and fair' view of the organisation's affairs)
- Authoring Language (Multimedia)
- High level computer programming facility with English language commands specifically
designed to develop multimedia applications. Wood, E (1994)
- Average Access Time
- the average time the drive head takes to reach and read a random spot on the disk
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