Magneto-Optical Storage is a data storage technology that combines magnetic and optical methods to read and write information. It uses a laser to heat a small area of a magnetic disk, allowing the magnetic properties to change. This process enables data to be written and erased, making it a rewritable medium. The stored data can be read by a laser that detects the magnetic orientation of the disk. This technology offers advantages like durability and resistance to environmental factors, making it suitable for long-term data storage. Common applications include backup systems and archival storage.