operating system

noun

: software that controls the operation of a computer and directs the processing of programs (as by assigning storage space in memory and controlling input and output functions)

Examples of operating system in a Sentence

Recent Examples on the Web
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Chrome is the world's leading web browser and Android is used by more smartphone users than any other operating system. John Ruwitch, NPR, 20 Apr. 2025 There is no iOS 17 update for older iPhones, perhaps because the operating system is not affected by this flaw. Kate O'Flaherty, Forbes.com, 17 Apr. 2025 In 2018, Google was fined 4.3 billion euros ($4.9 billion) by the European Union for abusing the dominance of its Android mobile operating system by forcing smartphone makers to pre-install Chrome and Search in a bundle with its Play app store. Ryan Browne, CNBC, 16 Apr. 2025 Kyle Orland & Andrew Cunningham Senior Technology Reporter Andrew is a Senior Technology Reporter at Ars Technica, with a focus on consumer tech including computer hardware and in-depth reviews of operating systems like Windows and macOS. ArsTechnica, 14 Apr. 2025 See All Example Sentences for operating system

Word History

First Known Use

1961, in the meaning defined above

Time Traveler
The first known use of operating system was in 1961

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Cite this Entry

“Operating system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/operating%20system. Accessed 24 Apr. 2025.

Kids Definition

operating system

noun
: software that controls the operation of a computer and directs the processing of the user's programs (as by controlling input and output functions)

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