3. What is Computer?
Computer is an electronic machine
that process data.Information given to
the computer is called data.Computer
works very fast. Its saves your time
and energy.
4. Monitor
- is an electronic visual computer display that
includes a screen, circuitry and the case in
which that circuitry is enclosed.
- Device used for observing checking, or
keeping a continuous record of a process or
quantity.
5. Central Processing Unit
- is known as the brain of computer. It
performs arithmetic and logical
calculations and controls the operations of
other parts of computer.
6. The keyboard is used for
entering data into the computer
system.It can type words,
number and symbols.
Keyboard
7. Mouse
- Is allows you to control the movement of
an on-screen pointer.
- When you move the mouse, the cursor
will also move.
- You can use the mouse to tell the
computer what to do.
8. Speaker
- is a hardware device that
connects to a computer to
generate sound.
9. Headphones with Microphone
A headphones with mic is a type of
headphones that includes a
microphone. This allows the user to
not only listen to audio through the
headphones, but also to speak into
the microphone.
10. Web cam
A web camera is used to
take live photos videos. You
can save them in the
computer.
11. Printer
A printer prints the results of
your work from the computer
screen on a sheet of paper.
This is called a printout.
12. Automatic Voltage Regulation
- is also known as Automatic
Voltage Stabilizer (AVS). It
stabilizes the mains power
supply voltage to a load
which provides protection
from power problems such
as sags, brownouts and
surges.
