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QUESTION 1 The primary drawback of using polling to control I/O devices is that... O it is simple to implement and debug. O it does

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QUESTION 1 The primary drawback of using polling to control I/O devices is that... O it is simple to implement and debug. O it does not execute instructions sequentially. Oit prevents the CPU from doing anything while waiting. O it only requires the CPU's attention when a device is ready

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