Please answer and explain in detail the following two part q

Please answer and explain in detail the following two part question. Thanks.

A hard disk has four surfaces (that\'s top and bottom of two platters). Each track has 2, 048 sectors and there are 131, 072 (2^17) tracks per surface. A block holds 512 bytes. The disk is not \"zoned.\" What is the total capacity of this disk? Show your work. (what is the relationship between blocks and sectors? Another All of the numbers given are powers of two.) Given the disk in Part 1, how much data can be accessed without moving the disk heads. (That, is, what is the capacity of one cylinder?)

Solution

Given

1. Total capacity of the disk = 4 surfaces * 131072 tracks/surface * 2048 sectors/track * 512 bytes/sector = 549755813888 bytes = 536870912 KB = 524288 MB = 512 GB

2. Capacity of one surface = 131072 tracks/surface * 2048 sectors/track * 512 bytes/sector = 128 GB/surface

Capacity of one track = 2048 sectors/track * 512 bytes/sector = 1048576 Bytes/track = 1024 KB/track = 1 MB/track

Hint : There is one track on each surface in each cylinder so one cylinder has one track per surface.

and 4 surfaces so 4 tracks per cylinder so one cylinder capacity = 1 MB/track * 4 tracks/cylinder = 4 MB