ISRO | ISRO CS 2020 | Question 30

A magnetic disk has 100 cylinders, each with 10 tracks of 10 sectors. If each sector contains 128 Bytes, what is the maximum capacity of the disk in kilobytes ?
(A) 1,280,000
(B) 1280
(C) 1250
(D) 128,000


Answer: (B)

Explanation: Disk capacity,

= 10 × 100 × 10 × 128 Bytes
= 1280000 Bytes 
= 1280 K Bytes 

Option (B) is correct.

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