The Simple English Wikipedia has an article on: Operating system The English used in this entry may not be easy for everybody to understand. You can help by making this page simpler. 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 Expressionoperating system (software) An operating system is a system software that controls the use of computer hardware and software resources. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads