Operating System (OS)
Under virtual storage,

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

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

Controlling the fuel injection system of an automobile engines
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

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