ASU Home My ASU Colleges & S urses Organizations Help The primary drawback of us
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ASU Home My ASU Colleges & S urses Organizations Help The primary drawback of using polling to control /O devices is that... O it is simple to implement and debug O it does not execute instructions sequentially. O it prevents the CPU from doing anything while waiting. O it only requires the CPU's attention when a device is ready. QUESTION 2 For Project 4, when will a value need to be written to the interrupt mask register? A At the beginning of the program. B. At the beginning of the Interrupt Service Routine (ISR). ° C. At the end of the interrupt Service Routine (SR) D. Both A and B E Both A andc Both B and C G. A, B. and c Click Sove and Submit to sove and submit. Click Sove Al Answers to save all onswers earchExplanation / Answer
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Q1) The primary drawback of using polling to control I/O devices is that it prevents the CPU from doing anything elese while waiting. Note that polling is done in an infinite loop, and you may have other instructions to execute sequentially within the loop. However, the CPU cannot do anything outside the loop while polling.
Q2) Project 4 details are not given!