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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Take an honest audit of your current operating system. Adrienne Down Coulson, Fortune, 2 June 2026 The projector runs the VIDAA operating system for access to popular streaming platforms – including Netflix, Disney+ and Prime Video – over Wi-Fi 6, with support for Apple AirPlay and HomeKit too. Paul Ridden june 02, New Atlas, 2 June 2026 At its Build 2026 developer conference, the company introduced Project Solara, an operating system built for a new class of agent-first hardware. Aamir Khollam, Interesting Engineering, 2 June 2026 Belle Haven was an operating system. Kate Casey, Vanity Fair, 2 June 2026 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 3 Jun. 2026.

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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