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Who or what? · Inventions

Who or what is it? A puzzle from the category Inventions

Five clues, from vague to obvious. The sooner you get it, the more points you score.

The clues

  1. Konrad Zuse built one of the first in 1941.
  2. It calculates with zeros and ones.
  3. Today there is one in every phone.
  4. Its heart is the processor.
  5. You work at it with a keyboard and mouse.
Guess it yourself
Show the answer
The computer

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