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Early operating system

Clue: Early operating system

We have 2 possible answers for the clue Early operating system which appears 7 times in our database.

Possible Answers:

  • DOS

  • UNIX

Last seen in:

  • L.A. Times Daily - Jan 3 2026
  • L.A. Times Daily - Aug 18 2024
  • Universal - Apr 11 2021
  • Universal - Jun 15 2020
  • New York Times - Dec 5 2019
  • USA Today - Sep 22 2019
  • USA Today - Jun 1 2004

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  • The square root of cuatro
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