What is CPU

Full form of CPU
                       A central processing unit, also called a central processor or main processor, is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logic, controlling, and input/output operations specified by the instructions
     

                                 
               

 The work of CPU in. Computer system

The central processing unit (CPU) of a computeris a piece of hardware that carries out the instructions of a computer program. It performs the basic arithmetical, logical, and input/output operations of a computer system