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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.

Meta has no platform layer, no operating system, no cloud business, no device.

From The Wall Street Journal • Mar. 15, 2026

Its Basic programming language and DOS operating system weren’t innovative in the market—but became standards.

From Barron's • Mar. 13, 2026

The case claims the shop built into the PlayStation's operating system was designed to make players a "captive class".

From BBC • Mar. 10, 2026

On top of the 699-euro phone, Punkt requires a 10-euro monthly subscription after one year of use, which the company says covers the costs of the operating system.

From Barron's • Mar. 4, 2026

It was so good, in fact, that it became—and remains—the operating system on which literally millions of computers around the world run.

From "Outliers" by Malcolm Gladwell