Control Unit

This unit controls the operations of all parts of computer but does not carry out any actual data processing operations.

Functions of this unit are:

      It is responsible for controlling the transfer of data and instructions among other units of a computer.

      It manages and coordinates all the units of the computer.

      It obtains the instructions from the memory, interprets them, and directs the operation of the computer.

      It communicates with Input/Output devices for transfer of data or results from storage.

      It does not process or store data.