The clue "Early computer operating system" last appeared in the Family Time crossword on April 29, 2019. The correct answer for this puzzle is "UNIX", a 4-letter word.
Solution UNIX is 4 letters long. So far we haven´t got a solution of the same word length.
There is 1 solutions. The longest is UNIX with 4 letters, and the shortest is UNIX with 4 letters.
No, "EARLY COMPUTER OPERATING SYSTEM" hasn´t seen a spike right now. Solvers are most interested in: Bobbin, AUTHORIZED ___, Painter Vermeer, Chic beach resort and State.
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The solution is 4 letters long.