Point & Draw devices
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Point & Draw devices

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Point & Draw devices Point & Draw devices Presentation Transcript

  • Input/Output Devices
  • Keyboard 08/29/10 PCTE, Baddowal
  • 2 button Mouse with scroll wheel 08/29/10 PCTE, Baddowal
  • 2 Button Mouse with scroll wheel
    • A ball in the bottom of the mouse rolls on the surface as you move the mouse.
    • Internal rollers sense the ball movement and transmit the information to computer via the cord of the mouse.
    • If the ball is dirty, mouse does not roll smoothly.
    08/29/10 PCTE, Baddowal
  • Optical Mouse 08/29/10 PCTE, Baddowal
  • Optical Mouse
    • Does not use rolling ball.
    • Uses light and a small optical sensor, which detects the motion of the mouse.
    • Problem of dirty mouse ball is avoided by using optical mouse.
    08/29/10 PCTE, Baddowal
  • Wireless Mouse 08/29/10 PCTE, Baddowal
  • Wireless Mouse
    • Communicates through Bluetooth mostly.
    • Needs external batteries.
    08/29/10 PCTE, Baddowal
  • Touchpad of a Laptop Computer 08/29/10 PCTE, Baddowal
  • Touchpad
    • Its a pointing device.
    • It consists of a special surface which translates the motion & position of user’s fingers to a relative position on the screen.
    • Commonly used in laptops as a substitute for a mouse.
    • Also used in PDAs.
    08/29/10 PCTE, Baddowal
  • Touchscreen
    • Most simple, intuitive, and easiest to learn of all input devices.
    • Enables users to choose from available options by simply touching with their finger the desired icon or menu item displayed on the screen.
    08/29/10 PCTE, Baddowal
  • Touchscreen
    • Most preferred human-computer interface used in information kiosks and ATMs.
    08/29/10 PCTE, Baddowal
  • Mobile with Touch screen and QWERTY keyboard 08/29/10 PCTE, Baddowal
  • Touch screen ATM 08/29/10 PCTE, Baddowal
  • Trackpoint 08/29/10 PCTE, Baddowal
  • Trackball Mouse 08/29/10 PCTE, Baddowal
  • Trackball in a laptop 08/29/10 PCTE, Baddowal
  • Joystick 08/29/10 PCTE, Baddowal
  • Light Pen 08/29/10 PCTE, Baddowal