Operating System (OS)
Swapping

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

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

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

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