Thursday 15 November 2012


Control Unit:

Control unit is the component of processor that directs the computer to perform different operations. In other word Control unit controls the instruction that are to be performed.
To understand, control unit is a traffic warden for computers.
The other function of control unit other than direction is that it also initiate the computer to perform that operation.
ALU, Registers and Buses are the components that take directions from Control unit.

Arithmetic Logic Unit:

It is also component of processor that performs operations.
the basic operations that are performed by ALU are
  • Arithmetic Operations (addition, subtraction multiplication, division, )
  • Comparison Operations (Greater than, less than, greater than equal to , less than equal to, and equal to )

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