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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
Google also found examples of multiple Russian groups creating malware for Windows and Android to grab Signal data from the Microsoft and Google operating systems.
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Thomas Brewster, Forbes, 19 Feb. 2025
But now, more than ever, most people will want to go through the OS and turn off a bunch of stuff to make the day-to-day experience of using the operating system less annoying.
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Ars Technica, 19 Feb. 2025
Many cyberattacks exploit unpatched vulnerabilities, so enabling automatic updates for your operating system, apps and antivirus software can significantly reduce your risk.
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Kurt Knutsson, Cyberguy Report, Fox News, 15 Feb. 2025
Driving the news: The app is now available in the Google Play store and will be available for download through Google's app store across all platforms, including smart TV operating systems, a source familiar with its thinking said.
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Axios, 13 Feb. 2025
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Word History
First Known Use
1961, in the meaning defined above
Dictionary Entries Near operating system
Cite this Entry
“Operating system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/operating%20system. Accessed 23 Feb. 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)
More from Merriam-Webster on operating system
Nglish: Translation of operating system for Spanish Speakers
Britannica.com: Encyclopedia article about operating system
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