Problem 53
Are problems or shortanswer questions. Name and describe three disk scheduling algorithms.
Problem 54
Use the following list of cylinder requests in Exercises 54-56. They are listed in the order in which they were received. \(40,12,22,66,67,33,80\) List the order in which these requests are handled if the FCFS algorithm is used. Assume that the disk is positioned at cylinder 50 .
Problem 55
Use the following list of cylinder requests in Exercises 54-56. They are listed in the order in which they were received. \(40,12,22,66,67,33,80\) List the order in which these requests are handled if the SSTF algorithm is used. Assume that the disk is positioned at cylinder 50 .
Problem 56
Use the following list of cylinder requests in Exercises 54-56. They are listed in the order in which they were received. \(40,12,22,66,67,33,80\) List the order in which these requests are handled if the SCAN algorithm is used. Assume that the disk is positioned at cylinder 50 and the read/write heads are moving toward the higher cylinder numbers.
