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

After months of teasers and persistent leaks, Google's next-generation laptop operating system—and the first computers to support it—are official. — James Peckham, PC Magazine, 21 Sep. 2026

Remote desktop software such as TeamViewer, VNC or RustDesk is wonderful while the remote computer is awake, connected and running an operating system. — New Atlas, 18 Sep. 2026

Periodic cash reporting is becoming a more dynamic and streamlined financial operating system that can better support broader enterprise activities. — Dr. Saheer Nelliparamban, Forbes.com, 18 Sep. 2026

The list, which was sponsored by global creator company Whalar Group and its digital operating system Foam, was previewed by Shapiro and Lazar over the weekend at IBC 2026 in Amsterdam, but The Hollywood Reporter has the full list below. — Alex Weprin, HollywoodReporter, 14 Sep. 2026

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)