Operating System (OS)
All of the following are task performed by the operating system except

Provides an interface for user to interact with computer
Performing housekeeping task like file compression and disk defragmentation
Controlling the access that application program has to the CPU
Managing hardware on the computer

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Operating System (OS)
Swapping

does not work with overlaying
works best with many small partitions
allows many programs to use memory simultaneously
None of these
allows each program in turn to use the memory

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