Original: Floppy disk drive and floppy media manufacturers specify an unformatted capacity, which is, for example, 2.0 MB for a standard 3 Â 1\/2 - inch HD floppy.
Simplified: The floppy disk (or a 3 Â 1\/2 floppy for today's standard) was a removable magnetic storage medium mainly used for computers and laptops, but other devices used them as well, like some early digital cameras, and even a Japanese NES accessory. A floppy drive is the part of the computer that reads from and writes to the floppy disk.