Computer cannot understanding our language because it understands only machine language and it can be possible using some devices are called input devices Input device captures information and translates it into a form that can be processed and used by other parts of your computer

1. BY Haider Ali Malik
Department of Botany
University of Sargodha

2. Introduction
Types of
Input
Device
Contents

3.  Computer cannot understanding our language
because it understands only machine language
and it can be possible using some devices are
called input devices
 Input device captures information and
translates it into a form that can be processed
and used by other parts of your computer

4. Keyboards
Pointing devices
Game controllers
Scanners
Styluses
Microphones
Digital cameras
Web cams
Types of Input Devices

5.  Keyboard is the most commonly used input devices
 They allow data entry into a computer system by
pressing a set of keys neatly mounted on a keyboard.
(1). Standard keyboard
(2). Multimedia keyboard
(3).Wireless keyboard

6. • Pointing devices are mainly used to choose and enter commands
• Pointing devices tend to have PS/2 connectors or USB connectors
• Types of pointing devices:
• Mouse
• Trackball
• Touchpad
• Pointing stick
Pointing Devices
p. 5.131 Fig. 5-2

7. Mouse is the most popular point-and-draw
device
Has 2 or 3 buttons and can be clicked or
double-clicked to perform tasks.
Types of mouse
(1). Serial mouse
(2).PS/2 mouse
(3).Optical mouse
(4).Wireless mouse



8. Game Controller
• Game controllers are used mainly to play games
• Types of gaming devices
• Gamepads
• Joysticks
• Gaming wheels
• Force feed
p. 5.134 Fig. 5-5

9. A joystick is a pointing device that works on the
principle of trackball

To make the movement of the spherical ball
easier, it is placed in a socket with a stick
mounted on it

 Commonly used for controlling player movements in
video or computer games
Joystick

10. •Scanner is a light sensitive device that helps you
copy or capture images, photos, and artwork
that exist on paper.
Scanner

11. Styluses
• Stylus is an input device consisting of a thin stick
that uses pressure to enter information or to click
and point.
• Styluses are used with:
•PDAs
•Tablet PCs
•Graphics tablets
p. 5.135 Fig. 5-6

12. Microphones
• Microphones are used to
input audio
• Three main types of
microphones are:
•Desktop microphones
•Headsets
•Directional microphones

13. 
 A computer with a vision-input device consists of
digital camera
 The camera creates an image of the object in
digital form so that It can be stored and interpreted
by the computer
 Resolution is measured in megapixels
Camera

14. Web Cams
• Web cam is a video camera that
can be used to take images for
uploading to the Web