Operating System (OS)
The purpose of run command in start menu is to

Start programs
Launch internet browser
Open windows explorer
Open internet explorer

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Operating System (OS)
A linker

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

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Operating System (OS)
A critical region is

one which is enclosed by a pair of P and V operations on semaphores
a program segment that often causes unexpected system crashes
a program segment where shared resources are accessed
a program segment that has not been proved bug-free
none is the above

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