How to calculate a hard drives internal data transfer rate.

[ish000007]

Plz. Help to solve this : Q. Find the Average disk access time that reads or write a 512 byte sector. Assume that the disk rotates at 12,000 rpm; each track of the disk has 100 sectors and data transfer rate of the disk is 100 MB/Second. (Please calculate data transfer time for the disk in addition to the seek time and latency time). Also find out what is meant by the controller overhead in the context of disk access time ?)