GATE 2002
April 7, 2025GATE 1999
April 7, 2025GATE 1999
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Question 37
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A multi-user, multi-processing operating system cannot be implemented on hardware that does not support
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Address translation
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DMA for disk transfer
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At least two modes of CPU execution (privileged and non-privileged)
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Demand paging
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Both A and C
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Question 37 Explanation:
Address translation and atleast two modes of CPU execution (Privileged and non-privileged) are needed to implement multiuser and multiprocessing operating system, because address translation provides memory protection which ensures that a given process does not interfere with another, and we need privileged and non-privileged instruction, so that user and OS interconnects properly.
Correct Answer: E
Question 37 Explanation:
Address translation and atleast two modes of CPU execution (Privileged and non-privileged) are needed to implement multiuser and multiprocessing operating system, because address translation provides memory protection which ensures that a given process does not interfere with another, and we need privileged and non-privileged instruction, so that user and OS interconnects properly.