Magnetic recording is a technology that involves capturing and storing data on magnetic media, such as hard disk drives, magnetic tapes, or floppy disks. This process relies on using a magnetic field to write data onto a magnetic surface, and then using a magnetic head to read that data back. Magnetic recording technology has been widely used in various electronic devices for data storage due to its low cost, high storage capacity, and reliability. Researchers in this field focus on improving the recording density, data transfer rates, and reliability of magnetic storage devices, as well as developing new materials and technologies to enhance the performance of magnetic recording systems.