Operating System (OS)
Memory management is :

None of these
replaced with virtual memory on current systems
not used on multiprogramming systems
critical for even the simplest operating systems
not used in modern operating system

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Operating System (OS)
The function(s) of the Storage Assignment is (are)

All of these
to assign storage to literals, and to ensure that the storage is allocate and appropriate locations are initialized.
to assign storage to all temporary locations that are necessary for intermediate results.
None of these
to assign storage to all variables referenced in the source program.

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