“Operating system developed by Bell Labs” crossword clue

Reveal the answer to see why it works and where this clue has appeared before.UNIX is the answer to the New York Times crossword clue “Operating system developed by Bell Labs”. It was last seen in the puzzle of February 13, 2025, where it runs at 12 Down and fills 4 squares. It crosses 4 other entries in that grid — those are listed below and are the quickest way to confirm the letters you already have.