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Computer operating system since 1969 (crossword clue)

4 squares · Mini Crossword · November 10, 2026 · The answer stays hidden until you tap it

This clue appeared in the Mini Crossword on Tuesday, November 10, 2026 (5 Across). The answer is hidden below until you want it.

Answer length: 4 squares

First letter

U _ _ _

First and last letters

U _ _ X

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About the answer

UNIX as a word: (computing) An operating system largely compatible with Unix that qualifies for use of the UNIX trademark, currently owned by The Open Group; (computing) An operating system that shares the original source code by Dennis Ritchie and Ken Thompson.

UNIX has been an answer 4 times in the NYT Crossword and Mini since January 9, 2026.

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