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

Founded by Israeli intelligence-unit veterans in response to the October 7 attacks, Kela is working to integrate AI and commercial tech into a battlefield operating system. —Jennifer Zhan, Vulture, 1 Aug. 2025

There are quick tabs based on operating systems with boxes for common issues on each platform. —PC Magazine, 1 Aug. 2025

Another reason to update to iOS 26 before then is, Apple will focus most of its efforts on the newer operating system, so its list of patches will be bigger. —Kate O'Flaherty, Forbes.com, 1 Aug. 2025

Reports have said Kela is currently developing a battlefield operating system that will enable military units to integrate AI and commercial tech. —Zac Ntim, Deadline, 31 July 2025

Word History

First Known Use

1961, in the meaning defined above

Rhymes for operating system

• cryptosystem
• ecosystem
• intersystem
• multisystem
• photosystem
• subsystem

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)