4. Computer
• A computer is a machine that manipulates
data according to a set of instructions.
• It has the ability to store, retrieve and
process data.
• It is a programmable machine that receives
input stores and provides output in a useful
format
5. Computer
Input Unit Output Unit
Storage Unit
Registers
Arithmetic
Logic Unit
Control Unit
CPU
I
N
F
O
R
M
A
T
I
O
N
D
A
T
A
Functioning of Computer