23 April 2026

Input and output

Input

Input is any data or instruction entered into a computer.

Examples:

  • keyboard,
  • mouse,
  • touch screen,
  • microphone.

Output

Output is the processed information produced by the computer.

Examples:

  • screen display,
  • printer,
  • speakers.

Simple flow:

Input → Processing → Output

Example:
You type words on a keyboard (input), the computer processes them, and the words appear on the screen (output).

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