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Operating system
//ˈɒpəˌɹeɪtɪŋ ˌsɪstəm//
Pronunciation
US //ˈɒpəˌɹeɪtɪŋ ˌsɪstəm//
US //ˈɑpəˌɹeɪtɪŋ ˌsɪstəm//
See also for "operating system"
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