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QWERTY KEYBOARD by 8q7xs8Ms

VIEWS: 17 PAGES: 18

									Input Devices
        Qwerty Keyboard
Application
• Word Processing
Pointing Devices – The Mouse
  Application
  • WIMP (windows, icons, menus & pointer)
  environment
Pointing Device - Trackball
Application
• WIMP (windows, icons, menus & pointer)
environment
Pointing Device – Track Point
  Application
  • WIMP (windows, icons, menus & pointer)
  environment
Pointing Devices – Touch Pad
  Application
  • WIMP (windows, icons, menus & pointer)
  environment. Found on laptops
Pointing Device - Light Pen
Application
•Computer Assisted Drawing
Pointing Device – Touch Screen
   Application
   •Menu Selection in Restaurants
   •Internet Telephone Booths
Graphics Tablet
Application
• CAD Input. This enables you to draw freehand
into the computer
Image Scanner
Application
• Desktop Publishing. To copy photographs,
pictures, text from books / magazines, into the
computer.
Digital Camera
Application
•Take photographs which can be fed directly
into the computer. These can be edited and
sent by mail or printed
Barcode Reader
Application
• POS (Point of Sale) such as supermarkets to
scan in bar codes.
OMR – Optical Mark Reader
Application
• Multiple Choice Questions
• Surveys
• Lotto Offices
MICR – Magnetic Ink
Character Recognition
Application
• Cheque Processing. The ink is magnetised
before reading. Very reliable so used on
cheques.
OCR – Optical Character
Recognition
Application
•This reads photocopied text and converts in to
normal text which can be edited. Most home
scanners can do this
Handwriting Recognition
Application
• Reads your writing and turns it into print.
Pen Computing
Application
• Selecting fast and easily from screen
CONCLUSION
   So as you have see NOWADAYS there
    are MANY TYPE of INPUT DEVICES
    used.

   All INPUT DEVICES have the same
    purpose – TO INPUT DATA into a
    computer system

   So DIFFERENT APPLICATION require
    APPROPIATE INPUT DEVICES.

								
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