A computer (Q68 on Wikidata) is a machine that carries out
calculations. Before computers were invented the word computer
used to refer to a person performing calculations.
The first computers were mechanical, then electromechanical and analog. Modern computers are fully electronic and digital, i.e. working with discrete values (typically two values: 0 and 1) instead of continuous values such as voltage.
Computer science and mathematics study computers using various computational models, strongest of which is the Turing machine (and its equivalents).
Some good articles to do with computers:
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This page was last edited on 2026-09-22 15:05:23.
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