Operating System (OS)
The primary job of the operating system of a computer is to

manage resources
None of these
provide utilities
command resources
be user friendly

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Operating System (OS)
Under virtual storage,

only the active pages of a program are stored in primary storage
a single program is processed by two or more CPUs
interprogram interference may occur
two or more programs are stored concurrently in primary storage
None of these

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Operating System (OS)
Round-robin scheduling

None of these
allows interactive tasks quicker access to the processor
allows processor-bound tasks more time in the processor
gives each task the same chance at the processor
is quite complex to implement

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