Page 15 - Digital Age - 3

Joystick

Joystick is an input device that is used to move the pointer on the
Desktop more precisely. It consists of a vertical stick which moves the
cursor in different directions, and a button to select options or open

programs. A joystick is mainly used to play computer games.

Webcam Joystick

Webcam is an input device used to take still photographs
or record video on a computer. It is used for online

communication and video conferencing. Laptops have an

Webcam in-built webcam.

Scanner
Scanner is an input device that scans photographs and paper-based documents and

converts them into digital documents that can be saved in the computer. The output
of a scanner is a file that can be viewed on the monitor or printed on the printer.
A scanner can be flatbed, sheetfed, or handheld.

Flatbed scanner Sheetfed scanner Handheld scanner

Light Pen

Light pen is a pen-shaped device used to select objects
directly on a computer screen. It uses laser light to mark

the area pointed at on the screen. It can also be used to
draw on some types of light-sensitive computer screens.
Light Pen
Output Devices

Output is the result of the processing performed by the computer on the input. Output
devices provide output to the user in different forms.

Let us learn about different output devices.

Monitor
Monitor is an output device similar to a television screen. It displays all the work that

we do on a computer. A monitor is also known as VDU (Visual Display Unit). The output
13