Control unit

Control Unit:

 

The operations of Input unit, output unit, ALU are co-ordinate by the control unit. The control unit is the Nerve centre that sends control signals to other units and senses their states. Data transfers between the processor and the memory are also controlled by the control unit through timing signals

 

Operational Steps:

 

The operation of computers are,
The computer accepts information in the form of programs and data through an input unit and stores it in the memory
Information stored in the memory is fetched, under program control into an arithmetic and logic unit, where it is processed.
Processed information leaves the computer through an output unit.  All activities inside the machine are directed by the control unit.

 

 

 

Functional Unit By S.Kamatchi Priyanka