Select correct definition of CPU, one of memory in a computer, It perform controlling computer system only, a digital circuit that processes data according to given instructions, It has two sub components only, what is cant consider as a sub component of a CPU, ALU, Control  unit, RAM, memory registers, select a function of control unit, controlling input and output data, doing mathematical operations, temporarily stores data and instructions that are being used by the Central Processing Unit, power saving, what is not function of control unit, ensuring that data is sent to right place at the right time, being alert whether relevant signals are successfully received, controlling input and output data, complete logical operation, select incorrect answer, CPU like a brain of computer, we can work without CPU, It has main 03 sub components, memory register is not sub component of CPU.

CPU

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