Operating System (OS)
The advantage of a command processor running only built-in commands is:

flexibility to the users in running lists of commands by simply collecting them in named batch command files
the command set being common across different hardware configurations
the processing is much faster than would other-wise be the case when user defined commands are used
users can create system programs and run them as commands
None of these

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Operating System (OS)
Paging

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

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