(computing) the ability to operate a personal computer and its associated software and hardware, and to understand most of the underlying concepts (but not necessarily the electronics, or a programming language)

(computing) A person who repairs computers, typically both hardware and software.

A branch of information security applied to both theoretical and actual computer systems and networks.

(computing) A computing device that processes signals that change in discrete, quantized, steps; as opposed to an analog computer.

plural of analog computer

plural of digital computer

(computing) A computer (mechanical, electrical or other) that processes using continuously varying signals rather than digital, quantized, values.

(computer games, chess) The game of chess involving a computer able to play autonomously, i.e. without human guidance.

plural of notebook computer

(computing) A microcomputer powered by batteries with an integral display screen and integral input device (such as a keyboard) that can be used on the move.