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

Beyond execution speed, parallel testing allows teams to validate software simultaneously on various device types, operating systems, and user scenarios. —William Jones, USA TODAY, 24 Mar. 2025

Rather than relying on general preservation protocols that may not account for the latest operating system updates or security features, expert consultation allows for device and situation specific approaches. —Lars Daniel, Forbes, 24 Mar. 2025

Pebble is back with two new products built on the original operating system. —Emily Forlini, PCMAG, 19 Mar. 2025

Vori, an operating system for independent grocers, will raise a Series B within the next 12 months, CEO Brandon Hill tells Axios exclusively. —Richard Collings, Axios, 18 Mar. 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)