Input Devices of Computer | (Examples and purpose)

Input devices - Keyboard, Mouse, Joystick, Light-pen, Trackball, Scanner, Passport scanner, Pen scanner,
Barcode reader, OMR scanner, graphics tablet, webcam.

This video explains the major component of a computer - the Input devices.

The input devices are connected to a computer to send data to the central processing unit for being processed.

Keyboards are used to enter text.

Mouse are pointing devices that control the cursor.

Joysticks are control devices used to control video games.

Light-pens are light-sensitive pointing devices.

Trackball is similar to a mouse.

Scanners capture images for computer display and editing.

Passport scanners are used to scan passports, ID cards, driving licenses, etc.

Pen scanner is used to enter printed text on computers.

Barcode reader reads the printed barcode.

OMR stands for Optical Mark Recognition.

Graphics tablet allows users to hand-draw images that are displayed on computer screen.

Webcams are used to record videos and also to stream live videos.
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