operating system

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Pronunciation

• (UK) IPA ^(key): /ˈɒpəˌreɪtɪŋ ˌsɪstəm/
• (US) enPR: ŏp′ə-rāt'ĭng sĭs'təm, IPA ^(key): /ˈɑpəˌreɪtɪŋ ˌsɪstəm/
• Hyphenation: op‧er‧at‧ing sys‧tem

Expression

Expression operating system

1. (software) An operating system is a system software that controls the use of computer hardware and software resources.