This slides makes you easy to present or knowing about input devices... Hope you will like it... And it will be helpful for you...

1. Sabbir Hossain
I.D No: 13087455
B.B.A 2nd Year 1st Semester
Department Of Marketing
University Of Rajshahi

2. TOPIC
Input Devices

3. WHAT IS INPUT?
 Any data or instruction entered into the computer is known as INPUT.
 An input device helps you to communicate with the computer.
 To enter information and issue commands, you use input devices.
 Examples of input devices:
 Keyboard
 Mouse
 Scanner
 Microphone
 Digital Camera and Web Camera
 Joystick

4. KEYBOARD
 The keyboard is the most common and widely used input device.
 It is made up of buttons called 'keys'. The keys are arranged into sections:
• Alphabet keys
• Function or F keys (F1, F2, F3)
• Numeric keys (one set above the alphabet keys and
a numeric keypad on the right)
• Arrow keys
•Command keys (insert, delete, home, end, page up/down)

5. IMAGE OF KEYBOARD

6. MOUSE
• A mouse is an input devices that fits comfortably under the palm of your hand.
• A mouse is a pointing device.
• We use mouse to control the movement of the mouse pointer on the screen and to make
selections from the screen.
• The bottom of a mouse is flat and contains a mechanism that detects the movement of a
mouse.

7. TYPES OF MOUSE
 Optical mouse
 Mouse in which the ball is replaced by an optical system (light-emitting
diode and sensor); it has no movable parts.
 Wheel mouse
 Mechanical or optical mouse that contains a scroll wheel.
 Cordless mouse
 Mechanical or optical mouse connected to the computer by infrared or
radio signals.

8. IMAGE OF MOUSE

9. SCANNER
• A scanner is a light-sensing input device that reads printed text and graphics and then
translates the results into a form the computer can use.
• The image or text can be saved or changed on the computer.

10. TYPES OF SCANNER
• Bar code reader
• Device that uses an optical scanning process to decode information contained in bar
codes.
• Optical scanner
• Equipment that converts a document’s graphics or texts into digital data.

11. IMAGES OF SCANNER
Optical scanner Bar code reader

12. MICROPHONE
• Microphone
• Device that converts electric pulses into broadcast or recorded sounds.
• A microphone allows you to record your voice to the computer.
• It also lets you speak to other people using computers or even on the telephone.
• A microphone is also called a mic.

13. PICTURE OF A MICROPHONE

14. JOYSTICK
• 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
• On most joysticks, a button on the top is provided to select the option currently
pointed to by the cursor
• Commonly used for controlling player movements in video or computer games

15. VARIOUS TYPES OF JOYSTICK

16. DIGITAL CAMERA, CAMCODOR
AND WEB CAMERA
 Web camera
 Miniature digital camera used to transmit video images in real time or for
videoconferencing over the Internet.
 Digital camcorder
 Portable video camera in which the recording tape is replaced by a processor, which
records and stores sounds and images in digital format.
 Digital camera
 Camera that contains a sensor and a microprocessor rather than film; it records and
stores images in digital form, which can then be viewed on a screen.

17. Picture Of Digital Camera, Camcodor And
Web Camera

18. Thank You