Operating System (OS)
Under virtual storage,

only the active pages of a program are stored in primary storage
two or more programs are stored concurrently in primary storage
None of these
interprogram interference may occur
a single program is processed by two or more CPUs

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Operating System (OS)
The advantage(s) of incorporating the macro processor into pass 1 is(are):

None of these
All of these
more flexibility is available to the programmer in that he may use all the features of the assembler in conjunction with macros.
Functions are combined and it is not necessary to create intermediate files as output from the macros processor and input to the assembler.
many functions do not have to be implemented twice.

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