The file data file data storage device may include at least one of electronic storage, magnetic storage, and optical storage.

This is especially true in data storage, where the tiny magnetic grains that make up computer memory follow many of the physical laws better explicated by this discovery.

The typical secondary storage medium of a microcomputer is the floppy and hard disks. A floppy disk, or diskette, is a thin circular piece of flexible polyester coated with a magnetic material.