Control Unit or CU is circuitry that directs operations within a computer's processor. It lets the computer's logic unit, memory, and both input and output devices know how to respond to instructions received from a program. Examples of devices that utilize control units include CPUs and GPUs.. Control unit control what happens inside the processor as with the brain of the computer. Control unit tells the computer’s memory, Arithmetic and logic unit, I/O devices how to respond to program’s instructions. The main function of it is to perform sending and receiving control signals from the other computer devices and handle related task such as fetching, decoding, execution of the instruction and store result. It also controls sequential instruction execution by guiding data flow oath from different computers. Interprets instruction and regulate and controls processor timing.

Rohith Madhu

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