C P U.
1.
A L U.
2.
C U.
Ø
ALU- A L U stands
for arithmetical logical unit.
Ø
During
data processing the actual execution of the instruction takes place in the alu
of a computer system.
Ø
It
perform and processed all the expression arithmetical (+, - ,*) and logical
(< ,>,=) operation.
Ø
C U- c u
stands for control unit.
Ø
The
control unit of a computer manages or the operation of a computer system that
is how dose the input device know that it is the time for it to enter the data
and storing how dose the final result given by the output unit.
Ø
It
obtains the instruction from the program stored in the main memory.
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