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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With an easy-to-navigate interface, improved voice typing, and advanced security features, this operating system is a must-have for businesses and power users. Nora Colomer, FOXNews.com, 8 Apr. 2025 But Microsoft continues to work on fundamental elements of the operating system's design. ArsTechnica, 8 Apr. 2025 The new Apple updates for older iPads and iPhones cover versions of its operating system including iOS 17, iOS 16 and iOS 15. Kate O'Flaherty, Forbes.com, 4 Apr. 2025 The release timeline may vary depending on the operating system, region, and language, Microsoft says. Jibin Joseph, PC Magazine, 4 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 15 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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