When you purchase a new computer, an operating software suitable to the hardware must be bought.
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The series of jobs awaiting execution is called a queue.
A. 对
B. 错
A program can use a device if that hardware is unavailable.
A. 对
B. 错
Operating system sets up a directory of programs undergoing execution and the devices.
A. 对
B. 错
Error recovery does not belong to operating system.
A. 对
B. 错
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