What is the composition of magnetic core storage?

The composition of magnetic core storage is indeed made up of tiny doughnut-shaped rings made of ferrite iron, which are referred to as magnetic cores. Each core can be magnetized in one of two directions, representing binary data. The use of ferrite material enhances the magnetic properties, allowing for effective storage and retrieval of data.

These ferrite cores are strung together in a grid formation, where individual wires are threaded through them. By passing an electrical current through the wires, magnetic fields are created that can set or change the magnetic state of the cores, thereby storing bits of information.

This system of magnetic core storage was widely used in early computers before the advent of modern semiconductor-based memory technologies, and it revolutionized data storage at the time due to its reliability and non-volatility.