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Showing posts with label how a keyboard works.. Show all posts
Showing posts with label how a keyboard works.. Show all posts

Wednesday, August 10, 2011

How a Keyboard Works

When we press a key:

  • The keyboard controller detects the keystroke.
  • The controller places a scan code in the keyboard buffer, indicating which key was pressed.
  • The keyboard sends the computer an interrupt request,telling the CPU to the keyboard.
Keyboard

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