Operating System (OS)
A public key encryption system

allows only the correct receiver to decode the data
allows anyone to decode the transmission
allows only the correct sender to decode the data
does not encode the data before transmitting it
None of these

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

All of these
many functions do not have to be implemented twice.
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.
None of these

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