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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Google this week gave us a peek at Android 16's design concept, which is intended to make Google’s mobile operating system feel bouncier and breezier. Rob Pegoraro, PC Magazine, 14 May 2025 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. Andrew Cunningham, ArsTechnica, 14 May 2025 First things first — the vulnerability in question is in watchOS, the operating system for Apple’s watch. Kate O'Flaherty, Forbes.com, 14 May 2025 Here's everything new coming to Google's mobile operating system. Julian Chokkattu, Wired News, 13 May 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 20 May. 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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