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Mainframe operating system Crossword Clue
Here is the answer for the crossword clue Mainframe operating system . We have found 40 possible answers for this clue in our database. Among them, one solution stands out with a 98% match which has a length of 4 letters. We think the likely answer to this clue is UNIX.
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Crossword Answer For Mainframe operating system:
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40 Potential Answers:
| Rank | Answer | Length | Source | Date |
|---|---|---|---|---|
| 98% | UNIX Mainframe operating system | (4) | ||
| 3% | DOS MS-___ (early operating system): Abbr. | (3) | ||
| 3% | RUN Operate | (3) | The Telegraph Quick | May 30, 2026 |
| 3% | RAN Operated | (3) | Thomas Joseph | May 26, 2026 |
| 3% | ENIAC Seminal mainframe of the 1940s | (5) | The Washington Post Mini | Apr 14, 2026 |
| 2% | ONAUTO Operating robotically | (6) | Wall Street Journal | Jun 11, 2026 |
| 2% | SPY Undercover operative | (3) | Newsday | Jun 7, 2026 |
| 2% | ADDS Performs a simple operation | (4) | New York Times | Jun 7, 2026 |
| 2% | OPEN ___ for business (in operation) | (4) | ||
| 2% | ALLIED In formal co-operation | (6) | The Times Concise | May 26, 2026 |
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We found 40 solutions for Mainframe operating system. The top solutions are determined by popularity, ratings and frequency of searches. The most likely answer for the clue is UNIX.
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