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Keyboard

A keyboard is a data entry or control device using a number of keys which are to be pressed by the fingers. There are two main types of keyboard:

Other types of keyboards, known as "numeric keypads", are the

  • Calculator keypad (with the 123 keys near the bottom)
  • the CCITT telephone keypad[?] (with the 123 keys at the top), arguably the most common keyboard layout in the world, with roughly 700,000,000 telephones in the world (estimated, as of 1994).

See: Keyboard layout



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