A hard drive uses magnetic disks or platters to store data. The disks spin rapidly while an arm with read or write heads moves across them, reading and writing data as needed. This process is accomplished by utilizing magnetism to write and read data on the disk's surface.

The full form of HDD in the Computer is the hard disk drive. Hard Disk Drive is an electromechanical device and the primary storage device in the computer system.

There are two types of drives: HDD (hard disk drive) and SSD (solid-state drive). HDD. HDDs are installed in most PCs and laptops. There are several aluminium plates inside the drive. Reading and writing operations are performed due to rotation of the plates and the sensing head located at a few nanometers.

How Much A New Hard Drive Costs? The cost of a new hard drive varies based on its storage capacity. A 1TB hard drive can cost around $50, whereas an 8TB hard drive cost anywhere around $300. The cost of a hard drive from 2TB to 6TB might range anywhere between $66.99 to $240 approximately.