Operating System (OS)
Swapping

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

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Operating System (OS)
A program

is a device that performs a sequence of operations specified by instructions in memory.
is the device where information is stored
is typically characterized by interactive processing and time of the CPU
None of these
is a sequence of instructions

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