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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.

Not the hardware—which Jobs reluctantly abandoned because it cost too much and nobody wanted it—but the operating system, which proved to be as revolutionary as Jobs always claimed it would be.

From The Wall Street Journal • May 17, 2026

This is because the latest version of iOS introduces age checks for UK iPhone users, as well as for iPads running on up-to-date iterations of its own operating system, iPadOS.

From BBC • May 5, 2026

After the acquisition in 2010, many engineers moved over to RIM to build a mobile operating system for the BlackBerry.

From The Wall Street Journal • May 2, 2026

Roku makes streaming devices and licenses its operating system to TV makers.

From Barron's • May 1, 2026

Or maybe your brain works on a different operating system from other people’s like mine and you’ve worked it out too.

From "The London Eye Mystery" by Siobhan Dowd




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