central processing unit
noun Computers.
CPU.
Also called
central processor.
Origin of central processing unit
First recorded in 1965–70
Words nearby central processing unit
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British Dictionary definitions for central processing unit
central processing unit
noun
the part of a computer that performs logical and arithmetical operations on the data as specified in the instructions
Abbreviation: CPU
Scientific definitions for central processing unit
central processing unit
The part of a computer that interprets and carries out instructions provided by the software. It tests and manipulates data, and transfers information to and from other components, such as the working memory, disk drive, monitor, and keyboard. The central processing units of personal computers are generally implemented on a single chip, called a microprocessor.