Operating System (OS)
...... runs on a computer hardware and serves as a platform for other system to run on

Operating system
All of above
Application system
System software

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Operating System (OS)
Virtual Memory

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

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