Q. What is the function of CPU in a computer system? What are its sub-units?


Answer :-

The CPU or the Central Processing Unit is the main control center and processing unit. It is also called brain of the computer as it guides, directs, controls and governs the performance of a computer.

The CPU has some sub-components that help in carrying out the processing of a task. These are :

(i) Arithmetic Logic Unit (ALU)
(ii) Control Unit (CU)
(iii) Registers

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