Operating System (OS)
A real time operating system is most likely to be used for which of the following task?

Ensuring that system clock works correctly on server
Managing the access to system files in a laptop computers
Controlling access to a shared printer in a network
Controlling the fuel injection system of an automobile engines

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

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.
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.
None of these

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Operating System (OS)
A public key encryption system

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

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