Operating System (OS)
Part of the POST process is to ensure that the test of essential peripheral device coincides with the hardware configuration that stored in

Cache Memory
ROM
CMOS
The hard drive

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Operating System (OS)
You should choose sleep option when

The computer is tired after working for the whole day
You finish working and going to bed
You are leaving for a very short time and want to resume you work shortly
When computer gets hanged frequently. Let it sleep for some time

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Operating System (OS)
Multiprogramming systems:

are used only on large mainframe computers
are easier to develop than single programming system
None of these
execute each job faster
execute more jobs in the same time period

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