No one likes the person who is not using his/ her brain. Likewise, CPU .. CENTRAL PROCESSING UNIT is a brain of a computer.
The chip on the computer is called MICROPROCESSOR.
A chip is a single wafter of a material known as SILICON on which the circuit is built.
THE FOLLOWING IS THE FUNCTIONS OF THE CPU
** IT READS THE PROGRAMM
** IT EXECUTES PROGRAM INSTRUCTIONS
** PERFORMS CALCULATIONS
** DECISION MAKER
** COORDINATE THE ACTIVITIES OF THE ENTIRE COMPUTER SYSTEM
That is why we call CPU (CENTRAL PROCESSION UNIT) IS the BRAIN OF THE COMPUTER