each particle of the emulsion having its own magnetic field, the direction and intensity of which indicates the SIGNAL's AMPLITUDE and FREQUENCY. See diagrams under EMULSION. The most common backings ...

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.

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 ...