Chapter 7, Problem 19RETC

Explanation of Solution

Physical components of a disk drive:

Some of the components of rigid disk drive are as follows:

• Disk platters
• Actuator arm
• Spindle
• Read/ write head

Disk platters:

• Fixed disks have a control circuitry and some glass or metal disks called platters. It is bonded with a thin film of magnetizable material. The disk platters are stacked on a spindle that is turned on using a motor.
  • The disk platter contains various concentric circles called as tracks. Mostly each and every track on the system contains the same number of sectors.

Actuator arm:

• The read/ write head are usually mounted on a rotating arm named as actuator arm.
• The axis of each actuator arm is enclosed by a coil which is induced with magnetic field...