Operating System (OS)
The ability of an operating system to control the activities of multiple program at the same time is called

Multitasking
Multioperating
Multiprocessing
Multipaging

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Operating System (OS)
Thrashing

None of these
always occurs on large computers
can always be avoided by swapping
can be caused by poor paging algorithms
is a natural consequence of virtual memory systems

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Operating System (OS)
The disadvantages of "Compile and Go" loading scheme is (are):

it is very difficult to handle multiple segments, especially if the source programs are in different languages, and to produce orderly modular programs.
a portion of memory is wasted because the core occupied by the assembler is unavailable to the object program.
None of these
it is necessary to retranslate the user's program deck every time it is run.
All of these

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