cs501 assignment 3 solution 2021
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Question No 01 12 marks
Let us assume a 32-bit processor having an 800 MHz frequency to which the following I/O devices are connected:
• A DVD writer that has a transfer rate of 24 MB/s.
• A keyboard that can be polled five hundred (500) times per second.
• A SATA hard drive which can transfer at 40 MB/s.
If CPU polling is used for selecting a device where each polling operation requires Ten (10) instructions, what will be the CPU time required to poll each device?
cs501 assignment 3 solution 2021
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