Early computer memories stored data in the residual magnetic fields of ferrite cores, which were assembled into arrays of core memory. Their powders are used in the coatings of magnetic recording ...

Both types of changes absorb energy. In terms of materials of construction, most magnetic cores are made of powdered iron or ferrite ceramics. Carbonyl iron is used in broadband inductors for ...

This magnetic read-only memory (ROM), contrary to ordinary coincident-current magnetic core memories (used for RAM), uses the ferrite cores as transformers. If you look at the picture above ...