Q81-a

A disk has $8$ equidistant tracks. The diameters of the innermost and outermost tracks are $1$ cm and $8$ cm respectively. The innermost track has a storage capacity of $10$ MB. What is the total amount of data that can be stored on the disk if it is used with a drive that rotates it with I. $80 \ \text{MB}$; II. $2040 \ \text{MB}$ I. $2040 \ \text{MB}$; II $80 \ \text{MB}$ I. $80 \ \text{MB}$; II. $360 \ \text{MB}$ I. $360 \ \text{MB}$; II. $80 \ \text{MB}$