Operating System (OS)
An operating system is a program or a group of programs that

Helps in checking the spelling of Word
Maintain the relationship in Database
Manages the resources of the Computer
Performs the calculations of cells in Excel

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Operating System (OS)
Paging

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