Input Devices - PowerPoint PPT Presentation

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Input Devices
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Input Devices

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Presentation Transcript

  1. Input Devices Text Entry Devices, Positioning, Pointing and Drawing

  2. Keyboard • QWERTY

  3. Keyboards cont… • Alphabetic keyboard • Chord keyboard

  4. Mobile Phone Keypad

  5. Handwriting Recognition • Simple and intuitive • Slow and a high error rate

  6. The Mouse • Developed in 1964 by Douglas C. Engelbart

  7. The Mouse

  8. Touchpad • First introduced by Apple in the Powerbook.

  9. Trackball

  10. Joystick • Absolute and Isometric

  11. The End