A hard drive is a device used by a computer to store persistent data. Hard drives have traditionally been constructed using magnetic platters that read information from the magnetic polarization of the platters surface. In recent years Solid State Drives have become more popular, and have the advantage of not having any moving parts and lower access times. Hybrid hard disks combine both traditional magnetic hard drives and SSD technology.
This guide shows you how to back up your hard drive, how to recover data from a faulty hard drive, reviews some external hard drive products and shows you how to erase any existing data on a hard drive.