Operating System (OS)
Virtual Memory

is a method of allocating processor time.
allows multiple programs to reside in separate areas of core at the time.
None of these
is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks.
consists of those addresses that may be generated by a processor during execution of a computation.

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Operating System (OS)
The dispatcher

actually schedules the tasks into the processor
never changes task priorities
is always small and simple
puts tasks in I/O wait
None of these

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Operating System (OS)
The term "operating system" means

the way a computer operator works
conversion of high level language into machine code
the way a floppy disk drive operates
a set of programs which controls computer working
None of these

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