Assume that each block contains of 1K bytes and each track of a hard disk of 512
ID: 3529300 • Letter: A
Question
Assume that each block contains of 1K bytes and each track of a hard disk of 512MB consists of 2K blocks. Assume that the disk is running under 12,000 rpm, and the speed of the step motor is 2 tracks per micro-second. Assume that a program of 16MB was saved into this disk and was evenly divided into N clusters, each consists of 8KB.
If these clusters are evenly placed all over the place, how long it takes to load it from the disk when it was executed?
If the disk was defragmented after the program was saved, how long it takes to load the program?
Explanation / Answer
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