A) Input Devices
1. Key Board :-
The keyboard acts as an input device. The keyboard has 101
or 114 keys. The keyboard translates information to the computer into the
language of the computer and sends it to the computer.
2. Mouse :-
The mouse is also an input device. There are mainly three
buttons on the mouse. 1. Left side 2. Right side 3. Scrolling button. With the
help of mouse you can easily reach anywhere on the computer screen. It is a Pointing Devices. The main principal it work on point and click.
3. Scanner :-
Using this scanner device, you can scan your photos or
documents and create a digital image on a computer.
4. Touch Screen :-
This type of screen is used in devices like mobile, tablet
or ATM devices
5. Joystick :-
The joystick is a device you use to play computer games.
With the help of the buttons on the joystick, we work to direct the computer.
B) Out Put Devices
1. Monitor :-
The monitor in a computer is called a Visual Display Unit
(VDU). This is an output device. Nowadays flat monitors or LCD / LED monitors
are used. The monitor works to show you both input and output.
2. Printer :-
The tools used to print computer generated documents or
information retrieved from the Internet on paper are called printers. Printed
text is called hard copy. There are many types of printers.
- Dot Matrix Printer
- Laser Printer
- Inkjet Printer
- Plotter
3. Speaker :-
A speaker is an external device that allows you to hear
video or audio playing on a computer, so it is called an output device.