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Point & Draw devices
 

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