Find how many times will keyboard be checked in an hour

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Reference no: EM1370780

A particular system is controlled by an operator through commands entered from a keyboard. The average number of commands entered in an 8-hour interval is 60.

a. Suppose the processor scans the keyboard every 100 ms. How many times will the keyboard be checked in an 8-hour period?

b. By what fraction would the number of the processor visits to the keyboard be reduced if interrupt-driven I/O were used?

Reference no: EM1370780

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