Operating System (OS)
The primary purpose of an operating system is to:

make computer easier to use
allow people to sue the computers
keep system programmers employed
make the most efficient use of the hardware
None of these

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Operating System (OS)
A linker

creates a load module
is not necessary with variable partitions
None of these
must be run after the loader
is not needed with a good compiler

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Operating System (OS)
You should choose sleep option when

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

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