Question

CPU of a personal computer is______.
1. ROM
2. Microcontroller
3. RAM
4. Microprocessor

Answer 1

Correct Answer - Option 4 : Microprocessor

​Central Processing Unit

• It is the main part of the computer. CPU chip or main processor is that part in the computer which performs or executes all the instructions or programs.
• The Central Processing Unit (CPU), the principal part of any digital computer system, generally composed of the main memory, control unit, and arithmetic-logic unit.
• It constitutes the physical heart of the entire computer system, it is linked to various peripheral equipment, including input/output devices and auxiliary storage units.
• In modern computers, the CPU is contained on an integrated circuit chip called a microprocessor.
• The control unit part controls the input and output devices.
• Arithmetic-logic units do basic operations like addition, multiplication, and division. 
• A primary storage device is a medium that holds a memory for a short period of time while a computer is running.