Magnetic storage
![Longitudinal recording and perpendicular recording, two types of writing heads on a hard disk.](/Images/godic/202501/24/Perpendicular_Recording_Diagram.svg4021.png")
![Hard drives use magnetic memory to store giga- and terabytes of data in computers.](/Images/godic/202501/24/Laptop-hard-drive-exposed4021.jpg")
Magnetic storage or magnetic recording is the storage of data on a magnetised medium. Magnetic storage uses different patterns of magnetisation in a magnetisable material to store data and is a form of non-volatile memory. The information is accessed using one or more read/write heads.