Data storage is used for archiving data in electromagnetic or other forms for use by a computer or device. Different types of data storage play different roles in a computing environment.
It is one of the oldest technologies for electronic data storage. The tape has largely been displaced as a primary and backup storage medium, but it remains well-suited for archiving because of its high capacity, low cost, and long durability.
A magnetic drum also referred to as a drum. It is a metal cylinder coated with magnetic iron-oxide material on which data and programs can be stored. They are used as a primary storage device but have since been implemented as auxiliary storage devices.
A magnetic core is a piece of magnetic material with a high magnetic permeability which is used to confine and guide magnetic fields in electrical, electromechanical and magnetic devices such as electromagnets, transformers, electric motors, generators, inductors, magnetic recording heads, and magnetic assemblies.
Floppy disk is also called as floppy, a floppy diskette is a type of storage media, that is capable of storing electronic data, like a computer file. The floppy diskette was first created in 1967 by IBM as an alternative to buying hard drives, which it was extremely expensive at the time.