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Definitions

operating system

[op-uh-rey-ting sis-tuhm] / ˈɒp ə reɪ tɪŋ ˌsɪs təm /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Then, on its own — without human guidance or help — figured out how to use that flaw to take control of any server running the operating system, using any computer, anywhere in the world.

From Los Angeles Times • Apr. 10, 2026

On the other side of the business, BlackBerry’s QNX real-time operating system for cars, robots, and other physical machinery has become the company’s core growth driver.

From Barron's • Apr. 9, 2026

The company says that Claude Mythos Preview managed to find high-security vulnerabilities in every major web browser and operating system, capabilities too powerful to fall into the hands of bad actors.

From The Wall Street Journal • Apr. 8, 2026

But each of those bodies still needs a brain - an operating system, or software, that tells the various bits of metal what to do.

From BBC • Apr. 7, 2026

‘But mine works on a different operating system from other people’s. And my wiring’s different too.’

From "The London Eye Mystery" by Siobhan Dowd