Operating System (OS)
What is the name of the technique in which the operating system of a computer executes several programs concurrently by switching back and forth between them?

Multitasking
Paging
Windowing
None of these
Partitioning

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Operating System (OS)
Process is

None of these
a program in execution
contents of main memory
a job in secondary memory
program in High level language kept on disk

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