A computer has a bus with a 5-nsec cycle time, during which it can read or write a 32-bit word from memory. The computer has an Ultra4-SCSI disk that uses the bus and runs at 160 Mbytes/sec. The CPU normally fetches and executes one 32-bit instruction ever 1 nsec. How much does the disk slow down the CPU?© BrainMass Inc. brainmass.com September 23, 2018, 2:34 am ad1c9bdddf - https://brainmass.com/computer-science/hardware/disk-speed-vs-cpu-speed-555548
The machine normally operates at 1/(1*10^-9)= 1000 MIPS. But the data coming from the disk needs to be placed in memory, and uses the bus. 160Mb/sec implies a rate of ...
The solution gives detailed steps on finding the amount that the disk slow down the CPU.