A hard disk is an integral part of a computer and can be found on any computer’s operating system and to store data.
The way it works is that there are platters inside this hard disk. These platters form an air cushion due to the rotation of the spindle motor. At the same time, the read/write head performs the read and write data written on the platter. Here’s how to do each one:
Internal operation
A hard disk can have four or five platters called magnetic disks. The larger the disk, the more data it can hold, but the less reliable it is. This platter is used to store programs and data.