Operating System (OS)
To properly exit windows

Clike the exit button on the desktop
None of the listed here
Select shut down from Start menu
Click the stop button on the desktop

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Operating System (OS)
Addressing modes

All of these
are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.
None of these
defines the fundamental method of determining effective operand addresses
performs indicated operations on two fast registers of the machine and leave the result in one of the registers.

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

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

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