8a) Amanda Kreuger said " Why can't every thing be aligned nicely, not out of synch with the radii coming from the center, for hard disks? Hotse races all start with the horses at the same radii and throughout the race?" Freddie was more realistic. There was a reason why hard disks are skewed. Help Freddie out by determining the reason why data on hard disks have a cylinder skew and that is necessary.

b)How much cylinder skew is needed for an Oceangate disk operating at 20,000 rpm(new series for the Christmas promotions) which has a seek time of 0.5 milliseconds? This disk has 800 sectors of 512 bytes each on each track.

c) Calculate the maximum data rate in MB/second for the disk described above