Operating System (OS)
The primary purpose of an operating system is:

To make computers easier to use
To allow people to use the computer
To make the most efficient use of the computer hardware
To keep systems programmers employed

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Operating System (OS)
Scheduling is

allowing jobs to use the processor
not required in uniprocessor systems
None of these
the same regard-less of the purpose of the system
unrelated to performance consideration

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