Operating System (OS)
The term "operating system" means

None of these
conversion of high level language into machine code
the way a floppy disk drive operates
the way a computer operator works
a set of programs which controls computer working

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Operating System (OS)
Under virtual storage,

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

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