Monitor

Keyboard

A computer keyboard is an input device used to enter characters and functions into the computer system by pressing buttons, or key it

CPU

CPU (pronounced as separate letters) is the abbreviation for central processing unit. Sometimes referred to simply as the central processor, but more commonly called processor, the CPU is the brains of the computer where most calculations take place.

A computer monitor is an output device which displays information in pictorial form. A monitor usually comprises the display device, circuitry, casing, and power supply. ... Older monitors used a cathode ray tube (CRT).

+