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

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

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Operating System (OS)
Semaphores

are used for memory management
synchronize critical resources to prevent deadlock
are used to do I/O
synchronize critical resources to prevent contention
None of these

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Operating System (OS)
Under virtual storage,

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

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