Consider a magnetic disk drive with $10$

double$-$sided magnetic disks inside it$.$ The

upper surface of every disk contains $150$

tracks and the lower surface only has $100$

tracks. Each track has $100$ sectors where the

sector size is $2KB.$ Suppose the average seek

time is $5\mathrm{.}5ms,$ track$-$to$-$track access time is $1$

$ms,$ and the drive rotates at $4,000rpm.$

a$.$ Calculate the size of the magnetic disk

drive.

b$.$ Find the average access time.

c$.$ What is the total time needed to transfer a

$10$ MB file from the drive?