Operating System (OS)
The process of transferring data intended for a peripheral device into a disk (or intermediate store) so that it can be transferred to peripheral at a more convenient time or in bulk, is known as

virtual programming
spooling
caching
multiprogramming
None of these

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Operating System (OS)
Multiprogramming systems:

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

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