Monitor: It is an output device used in computer system to display
results to user based on their input query.
Keyboard: Keyboard is an input device used to type Raw Data into computer system.
CPU: Central processing unit or CPU is main component of computer system also known as "Brain of Computer" It manipulates the user input data and provides desired output to user.
CPU consists of Control unit, Arithmetic logic unit (Alu),Registers,buses,clock.
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