Why Do Computers Use Binary?

Computers use binary because it’s like counting with only two fingers, on or off. Everything inside a computer is made up of tiny switches that can be either on (1) or off (0). It’s simple, and it works really well!

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Examples

  1. A light switch is binary, on or off, just like a computer’s switches.
  2. Your phone uses binary to store your favorite photo as zeros and ones.
  3. When you play a video game, the computer calculates all the movements using only numbers 0 and 1.

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