Operating System (OS)
Swapping

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

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Operating System (OS)
The CPU, after receiving an interrupt from an I/O device

halts for a predetermined time
branches off to the interrupt service routine immediately
branches off to the interrupt service routine after completion of the current instruction
hands over control of address bus and data bus to the interrupting device
None of these

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