Description: Operating system, after-school answer to the design of modern operating system OS, the main objective? Convenience, efficiency, scalability and openness. 2. OS role in several aspects which can be expressed as? A. OS as a user and computer the interface between the hardware system b. OS as the computer system resources managers c. OS implements the abstraction of computer resources. 7. to achieve time-sharing system, the key question is what? should be done?
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