5 mil where 1 mil = 1/1000 inch) for different purposes, which now include video and digital recording. The tape is coated with an oxide EMULSION, which when exposed to the variations of the magnetic ...

The first electronic storage medium, magnetic tape is made of flexible plastic with one side coated with a ferromagnetic material. The data are recorded as binary digits (bits) in the form of ...

London-based Magnetic Scrolls was an early pioneering ... the oxide material (which is what stores the data) to the backing tape, and this binder can absorb water over the years.