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Tuesday, August 9, 2011

What are Different Pointing Input Devices

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 A Pointing input device is an input device which is used to control  the movement of the pointer to select items on a display screen.

Examples of pointing input devices


include: Mouse, Track ball, Joystick, Pointing Stick, Graphic Tablet, Touch pad or Track pad, Touch Screen and Light pen etc.

1. Mouse
Explain What are different Pointing input devices
Explain different Pointing input devices - Mouse

Mouse is an input device used to control motion of pointer on screen. A mouse has two or three buttons called Left, Right and Middle button. Buttons are used to perform different functions.

2. Track Ball

 track ball pointing input device
Track Ball is an input device like a mouse. It is used in Lap top computers to control motion of pointer on screen. It is a pointing device like upside down mouse. It has a ball on its upper side. This ball is moved by fingers or thumb and the pointer moves accordingly on screen.

3. Joystick

 Joy stick pointing input device
Joystick is an input device used to play games on computer.

4. Pointing Stick

Pointing stick pointing input device

A pointing stick is a pressure sensitive small nub ( similar to pencil eraser ) used like a joystick. It is usually found on laptops fixed between the 'G', 'H', and 'B' keys. It operates by sensing the pushing force applied by the user. The pointer on the screen moves, when user pushes pointing stick with finger. Normally, it is
used with laptop computers.

5. Graphic Tablet

 A graphics tablet consists of a special pen called stylus and a flat pad. The image is created on the monitor screen as the user draws it on the pad with the help of stylus (special pen).
6. Touch Pad or Track Pad
 
Touch pad or Track pad is a pointing input device. It is used in Lap top computers to control motion of pointer on screen. Track pad is a stationary input device. It has a flat surface of 1.5 to 2 square inch. Finger is moved on this surface to move pointer on screen.

7. Touch Screen


 In ATM and in latest smart phones, touch screen is used to receive input from the user. The user enters data by the touch of his finger on different menu options or icons present on touch screen.

8. Light Pen


different Pointing input devices

Light pen is an input device consisting of a special pen that is connected to a computer's monitor. The user points at the screen with the pen and selects items or chooses commands.

Read more  Different Types of Input Devices

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