The entire system and the program may execute on

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A+ Guide to Hardware
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Chapter 5 / Exercise 8
A+ Guide to Hardware
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the entire system, and the program may execute on different processor every single time. For fault-tolerant computing I will definitely choose symmetrical multiprocessing. The reason is symmetrical multiprocessing can more efficiently access all the data than master-slave multiprocessing due to its characteristics. Also, not like master-slave multiprocessing, in SMP, when one processor's down, other processors still can work efficiently, it won't cause the system failure. 4. Suppose there were no interrupts provided in a computer particularly with respect to events external to the CPU. Explain coherently the most likely consequences. [5 marks]
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A+ Guide to Hardware
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Chapter 5 / Exercise 8
A+ Guide to Hardware
Andrews/Dark
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5. Explain coherently why the average seek time for a hard disk much shorter than for a CD-ROM or DVD-ROM? [5 marks]

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