Central processing unit (CPU) | Definition & Function | Britannica
https://www.britannica.com/technology/central-processing-unit
WebMar 10, 2024 · central processing unit (CPU), principal part of any digital computer system, generally composed of the main memory, control unit, and arithmetic-logic unit. It constitutes the physical heart of the entire computer system; to it is linked various peripheral equipment, including input/output devices and auxiliary storage units.
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