オペレーティングシステム

おぺれーてぃんぐしすてむ
noun
operating system; OS
formaltechnicalelectronics
See also: OS (abbreviation)
1. operating system; OS
The fundamental software that manages computer hardware and provides services for other programs. Examples include Windows, macOS, Linux, iOS, and Android.
オペレーティングシステム更新(こうしん)した
I updated the operating system.
Which operating systems does this software support?
オペレーティングシステム(ふる)セキュリティ(じょう)危険(きけん)だ。
An outdated operating system is a security risk.

オペレーティングシステム is the full form of OS (オーエス).

Common abbreviation

  • OS (オーエス): Much more commonly used in everyday speech

Major operating systems

Related words

Usage

In conversation, the abbreviation OS is almost always used. The full form オペレーティングシステム appears more in formal writing or technical documentation.