Hard Drive
The hard drive, also called hard disk or hard disk drive (HDD), is a storage medium that works on a magnetic basis and on the surface of which data is read and written in a rotating manner. The surface of the hard drive is magnetically coated. When information or data is written to the hard drive, it is magnetized without touching it. Remaining magnetization (remanence) ensures that the information is saved. During the reading process, the hard disk scans the surface of the magnetization and reads out the information. Hard drives nowadays have a storage capacity of up to 10 terabytes (TB).