作者aweila75 (David)
看板TransCSI
标题[问题] 89NCCU-CS 磁碟存取时间与空间计算
时间Sun Apr 22 11:56:04 2007
2.A multiplattered hard disk is divided into 40 sectors and 400 cylinders.
There are four platter surfaces. The total capacity of the disk is 128MB.
A cluster consists of 4 sectors. The disk is rotating at a rate of 5400rpm.
The disk has an average seek time of 12 msec.
(a) what is the capacity of a cluster for this disk?
(b) what is the average access time before starting data transfer?
(c) what is the maximal disk transfer rate in bytes per second?
想了很久，算不出来XD，高手请帮忙，感谢您。
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1F：推 just1016:(a)capacity = cylinders x heads x sectors per track 04/22 12:54