Consider a magnetic disk drive with 8 surfaces, 512 tracks per surface, and 64 sectors per track. Sector size is 1 kB. The average seek time is 8 ms, the track-to-track access time is 1.5 ms, and the drive rotates at 3600 rpm. Successive tracks in a cylinder can be read without head movement.

a) What is the average seek time?

b) What is the average rotational latency?

c) What is the transfer time for a sector?

d) What is the total average time to satisfy a request?