1s Complement Notation

See One’s Complement Notation.

2s Complement Notation

See Two’s Complement Notation.

Access Time

1. The sum of the rotational delay and seek time on a hard disk. 2. The time required to find and return a specific piece of information from disk or memory.

Accumulator Architecture

An architecture that assumes one operand to be in the accumulator without requiring the accumulator to be explicitly referenced in the instruction.


In the context of numeric representation, accuracy refers to how close a number is to its true value.

ACID Properties

Four characteristics of a database or transaction-processing system: 1. Atomicity, meaning that all related updates take place within ...

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