operating system Meaning in the Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of “operating system” in the English Dictionary

"operating system" in British English

See all translations

operating systemnoun [C]

uk   us  
a set of ​programs that ​control the way a ​computersystemworks, ​especially how ​itsmemory is used and how different ​programswork together
(Definition of operating system from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"operating system" in American English

See all translations

operating systemnoun [C]

 us   /ˈɑp·əˌreɪ·t̬ɪŋ ˌsɪs·təm/ (abbreviation OS)
the set of ​programs that a ​computer uses to ​operate, ​storefiles, and ​communicate with ​devices and other ​computers
(Definition of operating system from the Cambridge Academic Content Dictionary © Cambridge University Press)

"operating system" in Business English

See all translations

operating systemnoun [C]

uk   us   ( abbreviation OS, O/S) IT
a ​program that ​controls the way a ​computerworks, and that ​allows applications (= ​programs for particular ​purposes) to ​work on it: a computer/PC operating system A ​leadingeconomist denied that the ​firm has a ​monopoly in the PC ​operatingsystemmarket.
(Definition of operating system from the Cambridge Business English Dictionary © Cambridge University Press)
Translations of “operating system”
in Chinese (Simplified) (计算机的)操作系统…
in Turkish bilgisayar yazılım sistemi…
in Russian операционная система…
in Chinese (Traditional) (電腦的)操作系統…
in Polish system operacyjny…
What is the pronunciation of operating system?
Add Cambridge dictionaries to your browser to your website

More meanings of “operating system”

Word of the Day

harvest

to pick and collect crops, or to collect plants, animals, or fish to eat

Word of the Day

In London but at the station: prepositions for talking about travel
In London but at the station: prepositions for talking about travel
by Liz Walter,
September 02, 2015
Several readers have asked for information on prepositions, so I will start with a blog post that looks at an area where they are really important: travel. The first thing to remember is that we use to (and not ‘in’) after the verb go: We are going to London. I went to

Read More 

parklet noun
parklet noun
August 31, 2015
a public outdoor space that may be associated with a local business but where anyone can sit Pop-up cafes in NY are what’s actually called parklets in many other places around the country.

Read More