1. Study Centre – Satya Priya Roy College
Of Education.

2. Central processing unit is the
most important device located
at the core of the computer
system. It is an integrated
chip housed in a plastic case.
It has metal legs that fasten it
to a circuit board made of
fiber glass. They also carry
electrical impulses into and
out of CPU. It is made up of a
single integrated circuit which
is called microprocessor.

3. Central Processing Unit is one
of the main components of the
computer system. It executes the
instructions of the program to
complete a task. It process the
data received by it and produces
the useful information. All the
tasks required to get the result
are processed through central
processing unit. Hence it is
known as the brain of the
computer system can just like a
human body does not functions
without the brain, a computer
cannot function without a CPU.

4. The major responsibility of
the instructions is with the
CPU. The instructions
executions takes place in the
CPU registers. The CPU in a
microcomputer is a
microprocessor chip.

5. The CPU itself has three
parts, namely, memory unit,
control unit (CU) and
arithmetic logic unit (ALU).
The processing speed, the
size of internal memory and
the capability of ALU etc, all
depend upon the type of
microprocessor chip chosen.

6. It is one of the parts of central
processing unit. This controls
all the parts of computer. It
deals with the input as per
the instructions using the
memory, and the ALU. After
the processing, it sends
results back to the memory
from where they reach the
output device. It helps to take
stored instructions in
sequence one at time. It
interprets each instructions
and prompts its executions by
one of the units like input,
output, storage or ALU.

7. It is one of the parts of central
processing unit. This controls
all the parts of computer. It
deals with the input as per
the instructions using the
memory, and the ALU. After
the processing, it sends
results back to the memory
from where they reach the
output device. It helps to take
stored instructions in
sequence one at time. It
interprets each instructions
and prompts its executions by
one of the units like input,
output, storage or ALU.