Question

List out the operation performed on HDD

Answer 1

A Hard Disk Drive or HDD is a type of storage used as the primary storage system for Laptop , Desktop.It is non volatile, means if you power off your device i.e computer or laptop,your data will not get lost.

Inside the casing there are series of disk-like objects called "Platters".

• Platters - These are the circular discs inside the hard drive where the 1s and 0s that make our file are stored,pthey are made up of ceramic , aluminium and havea magnetic surface to store permament data.Data is stored on the platters in tracks,sectors and cylinders.
• The Spindle - The spindle keeps the platters in position and rotates them,the revolution per minute rating determines how fast data can be written to and read from the hard drive.The spindle keeps the platters at a fixed distance far from each other to enable the readand write arm.
• The Read/Write Arm :.The arm makes sure the heads are in the right position based on the data that needs to be accessed or written.It controls the movement of read and write arm and convert magnetic surface into an electric current. There is typically one read/write head for every platter side,which floats 3 to 20 millionths of an inch above the platter surface.
• Actuator - The actuator or head actuator is a small motor that takes instructions from the drive  circuit board and  control the movement of the read/write arm ,It is responsible forcorrectness of the read/write heads are in exactly the right places at all times.