10. Comparing first come-first serve process and disk scheduling (a) What is the

Question

10. Comparing first come-first serve process and disk scheduling
(a) What is the principal advantage of FCFS process scheduling?
(b) What is the principal disadvantage of FCFS process scheduling?
(c) What is the principal advantage of FCFS disk scheduling (see text 10.4)?
(d) What is the principal disadvantage of FCFS disk scheduling?
(e) In overcoming the disadvantage of FCFS scheduling, how do the disk scheduling solutions differ from the process scheduling solutions in terms of what we can and cannot know in advance?

Explanation / Answer

c) Advantage of First Come First Serve is that it is the simplest form of scheduling and hence easy to program as well.

d) Disadvantage is that waiting time could be quite large when considering short request and not quite suitable for time sharing systems.

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