Computer and its components

4.  An input device allows you to enter
information.
 The most fundamental pieces of
information are keystrokes on a keyboard
and click with a mouse.
 Input devices are essential for us to
interact with computer.

6.  An output device is any device used to
send data from a computer to another
device or user.
 Most computer data output that is meant
for humans is in the form of audio or
video.

8.  A computer can store a vast amount of
information and can recall that
information instantly and correctly when
desired.

10.  The CPU of a computer is a piece of
hardware that carries out instructions of
a computer program.
 It performs various Arithmetical , Logical
and input/output operation of a computer
system.
 CPU is like the brain of the computer.

11. ALU
• Arithmetic
Logic Unit
CU
• Control Unit