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

Yes, installing a new operating system (especially one based on Linux) is not exactly a plug-and-play process. —Ars Technica, 1 Mar. 2025

Keeping your operating system, browsers and security software up to date ensures that known vulnerabilities are patched. —Kurt Knutsson, Cyberguy Report, Fox News, 26 Feb. 2025

Then, earlier this month, Cuban likened the Dončić-for-Anthony-Davis-swap to Bill Gates trading for an older, inferior operating system in an event with the former Microsoft CEO. —Christian Clark, The Athletic, 24 Feb. 2025

Second, the launch of a connected TV (CTV) operating system removed major frictions from CTV advertising and the incremental dollars flowing into that market will benefit TTD for many years to come. —Stockstory Team, CNBC, 22 Feb. 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)