Operating System (OS)
Which of the following statement is true.

All of these
Thrashing is a natural consequence of virtual memory systems.
None of these
The LRU algorithm pages out pages that have been used recently
Seek analysis is used for analysing control-unit busy problems.

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Operating System (OS)
The Memory Buffer Register (MBR)

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.
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".

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