Pointing Devices
- 2. Definition ➢ Pointing Devices are hardware input devices used to control the cursor on computer screen. ➢It is a device through which we can control the movement of pointer to select the items on screen.
- 3. Pointer It is a small symbol that appears on the screen .
- 4. Pointing Devices ➢ A pointing Device can be used to select text, graphics and other objects such as: o Buttons o Icons o Menu Commands
- 5. Types of Pointing Devices ➢ Mouse ➢ Trackball ➢ Pointing Stick ➢ Touchpad OR Trackpad
- 6. Mouse •It is a device that control the movement of cursor or pointer on display screen. • As we move the mouse, the cursor on display screen moves in the same direction.
- 7. Types of Mouse ➢Mechanical Mouse ➢Optical Mouse ➢Air Mouse ➢Touch Mouse ➢Wireless OR Cordless Mouse
- 8. Mechanical Mouse ➢ A mechanical mouse is a computer mouse that contains a metal or rubber ball on its lower side. ➢ When the ball is rolled in any direction, sensors inside the mouse detect this motion and move the on-screen mouse pointer in the same direction.
- 9. Optical Mouse ➢ An optical mouse is a computer mouse which uses a light source, typically a light-emitting diode. ➢ It contains no ball inside it. ➢ It is more expensive then mechanical mouse.
- 10. Wireless OR Cordless Mouse ➢ A cordless mouse, also called a wireless mouse, is a mouse that connects to a computer without the use of wires. ➢ It transmits data using Radio waves or Infrared Light waves.
- 11. Air Mouse ➢ Air Mouse is a Motion-Sensing mouse. ➢ It controls the objects by moving the mouse in specific directions through the air.
- 12. Touch Mouse ➢ It is a Touch-Sensitive mouse. ➢ It works on recognizes the touch gestures.
- 13. Trackball ➢A trackball is a different kind of computer mouse. ➢ It is a plastic containing a ball on the top that moves a computer cursor around on the screen. The user can move the ball with their thumb or fingers, and sensors inside the case detect which direction the ball is moving.
- 14. Trackball ➢ The advantage of trackballs over mouse is that the trackball is stationary so it does not require much space to use it. ➢ You can place a trackball on any type of surface, including your lap.
- 15. Pointing Stick ➢ It is a pressure-sensitive device. ➢ A pointing stick is a small joystick used as a pointing device typically mounted centrally in a computer keyboard. ➢ It requires no additional space cleaning like mouse.
- 16. Touchpad or Trackpad ➢It is a small flat surface over which the user moves his finger. ➢It is also as Trackpad. ➢The movement of finger moves the cursor on screen.
- 17. Touchpad It is a pointing device has a tactile sensor.
- 18. THE END