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operating system

noun
🔊/ˈɒpəreɪtɪŋ sɪstəm/
🔊/ˈɑːpəreɪtɪŋ sɪstəm/
(abbreviation OS)
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  1. a set of programs that controls the way a computer works and runs other programs（计算机）操作系统
    • Which operating system do you use?您使用哪个操作系统？
    Wordfinder
    Topics Computersc1