Crossword clues for the word: OPERATINGSYSTEM The word OPERATINGSYSTEM has appeared as an answer to at least 11 crossword clues on different crossword puzzles. Crossword clues for OPERATINGSYSTEM Showing 1 to 11 of 11 results Clue(s) "Computer's ""brain""" "Microsoft Windows, for one" "Unix, for one" "Windows, for one" Computer company’s concern, sorting gamers into types Hardware manager Manages those on the database presumably in The Theatre Surgeons M.O.? Windows or Unix Windows, e.g. Windows, for example