central processing unit
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central processing unit (cpu, CPU)
the component of a computer that controls the encoding and execution of instructions, consisting mainly of an arithmetic unit, which performs arithmetic functions, and an internal memory, which controls the sequencing of operations. Also called processor.
central processing unit (CPU),
n the primary processor of a computer, containing the internal memory unit (memory), arithmetic logic unit (ALU), and input/output control unit (I/O control).