operating system
  • (RP) IPA: /ˈɒpəˌɹeɪtɪŋ ˌsɪstəm/
  • (GA) enPR: ŏp′ə-rāt'ĭng sĭs'təm, IPA: /ˈɑpəˌɹeɪtɪŋ ˌsɪstəm/

operating system (plural operating systems)

  1. (software) Software that controls the allocation and usage of hardware resources such as memory, CPU time, disk space, and input and output devices.
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