If hardware does not support _________ then a multi - user and multi - processing operating system cannot be implemented.

At least two modes of CPU execution

If hardware does not support _________ then a multi - user and multi -

1.	If hardware does not support _________ then a multi - user and multi - processing operating system cannot be implemented.
A.	At least two modes of CPU execution
B.	Demand paging
C.	DMA for disk transfer
D.	Address translation
Answer» C. DMA for disk transfer

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If hardware does not support _________ then a multi - user and multi - processing operating system cannot be implemented.

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