Operating System (OS)
Which of the following capabilities is required for a system program to execute more than one program at a time?

None of these
word processing
virtual memory
multitasking
compiling

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Operating System (OS)
Under virtual storage,

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

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