Operating System (OS)
A program

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

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Operating System (OS)
Thrashing

None of these
always occurs on large computers
can be caused by poor paging algorithms
can always be avoided by swapping
is a natural consequence of virtual memory systems

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