Q
In an interrupt driven input/output __________
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A
A. The cpu uses polling to watch the control bit constantly, looping to see if a device is ready
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B
B. The cpu writes one data byte to the data register and sets a bit in control register to show that a byte is available
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C
C. The cpu receives an interrupt when the device is ready for the next byte
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D
D. The cpu runs a user written code and does accordingly
Correct Answer:
C. C. The cpu receives an interrupt when the device is ready for the next byte
