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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.

The company’s flagship Delfi cloud operating system acts as a collaborative space where remote teams at an energy company leverage machine learning to eliminate workflow bottlenecks and significantly speed up drilling cycles.

From Barron's • May 28, 2026

The operating system stayed embedded in retail, banking, healthcare, energy, law enforcement and defense systems long after it should have been retired.

From MarketWatch • May 27, 2026

The airline struggled more than rivals after the CrowdStrike outage two summers ago crashed millions of computers around the world running Microsoft’s Windows operating system.

From The Wall Street Journal • May 26, 2026

He also drew parallels between the current environment, when the internet was just beginning to flourish and Windows 95, a groundbreaking operating system, was first released.

From MarketWatch • May 7, 2026

The first version of the Windows operating system launched in 1985, and the breakthrough version that made IBM PCs much more user-friendly—Windows 3.0—shipped on May 22, 1990, only six months after the wall went down.

From "The World Is Flat" by Thomas L. Friedman




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