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Once the BUS is granted to a device ___________

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Once the BUS is granted to a device ___________

(a) It activates the BUS busy line

(b) Performs the required operation

(c) Raises an interrupt

(d) All of the mentioned

I had been asked this question in an internship interview.

My enquiry is from Bus Arbitration topic in chapter Input/Output Organisation of Computer Architecture

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The correct option is (a) It activates the BUS busy line

The best I can explain: The BUS busy activated indicates that the BUS is already allocated to a device and is being used.

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