Operating System (OS)
UNIX operating system is a(n)

All of the listed here
Multi tasking operating system
Time sharing operating system
Multi user operating system

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Operating System (OS)
Which of the following is not a characteristic of a daisy chaining priority control scheme?

it is relatively easy to add more devices to the chain
priority is programmable
None of these
the failure of one device may affect other devices on the chain
the number of control lines is independent of the number of devices on the chain

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