Question : Problem: hard drive capacity

I have an assignment to calculate the number of sectors per track and the total number of cylinders based on the specification of WD Caviar SE200 disk drive.Assume that the buffer to disk rate  = transfer rate.

What I did is by using the formula,

#of sector per track = #of bytes / track  divides by # of bytes per sectors

and I got 1497.4 sectors/track.

Later I found out that actually the specification says that the sectors per track is actually 63. The difference are way too huge. Is there something wrong with my calculation?

Answer : Problem: hard drive capacity

Hi,

I think the reason is because of the limitation of the BIOS during the age old days of HDD history, that it is designed to see 63 sectors..

More Info
http://www.pcguide.com/ref/hdd/geom/geomLogical-c.html