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Definition of operating system noun from the Oxford Advanced Learner's Dictionary

 

operating system

 noun
noun
BrE
 
; NAmE
 
(abbreviation OS) Computer software, Computer programming
 
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a set of programs that controls the way a computer works and runs other programs Wordfindercode, data, functionality, input, interface, keyword, operating system, program, retrieve, software See related entries: Computer software, Computer programming
See the Oxford Advanced American Dictionary entry: operating system

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