Operating System (OS)
System maintenance:

is not required if the system is well written
is necessary on all systems, regardless of how good
is usually not necessary
None of these
always requires several programs

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Operating System (OS)
Seeks analysis

is used for analyzing paging problems
is only shown on real-time displays
is used for analyzing control-unit busy problems
is used for analyzing device busy problems
None of these

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Operating System (OS)
Virtual Memory

None of these
consists of those addresses that may be generated by a processor during execution of a computation.
is a method of allocating processor time.
allows multiple programs to reside in separate areas of core at the time.
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.

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