Operating System (OS)
Thrashing

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

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Operating System (OS)
Page stealing

Is a sign of an efficient system
Is taking layer disk space for page in page out
Is taking page frame from other working sets
Should be the turning goal

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Operating System (OS)
The instruction register

is a hardware memory device which denotes the location of the current instruction being executed.
contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
None of these
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
contains the address of the memory location that is to be read from or stored into.

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