Keyboard: Input device containing keys arranged in a typewriter style fuction. It is used to input numers letters and othe symbols. A keyboard contains: numeric keys, standard alphanumeric keys, function keys, and directinal keys and special keys.
Keyboards can be Wireless, Portable, or Foldable.
Handheld PCs and mobile devices today usually have a built-in keyboard or thumb pad (keyboard designed to be pressed with just the thumbs)

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