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Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Consider a disk system having 60 cylinders. Disk
requests are received by a disk drive for
cylinders 10, 22, 20, 2, 40, 6, and 38, in that order.
Assuming the disk head is currently at cylinder
20, what is the time taken to satisfy all the
requests if it takes 2 milliseconds to move from
one cylinder to an adjacent one and Shortest
Seek Time First (SSTF) algorithm is used ?
Transcribed Image Text:Consider a disk system having 60 cylinders. Disk requests are received by a disk drive for cylinders 10, 22, 20, 2, 40, 6, and 38, in that order. Assuming the disk head is currently at cylinder 20, what is the time taken to satisfy all the requests if it takes 2 milliseconds to move from one cylinder to an adjacent one and Shortest Seek Time First (SSTF) algorithm is used ?
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