In the past, one of the most commonly used methods to backup and store data. The 3.5-Inch floppy diskettes have dimensions of 8.9cm in width by 9.3cm in height and are referred to as floppies because of the circular magnetic floppy within the hard shell. 3.5-inch floppy diskettes come in sizes of 720kb low-density and the 1.44MB high density capacity. In the picture to the right, is a diagram of a floppy diskette and each of its major components. Below, is a clear floppy diskette and a real-life example of what these floppy diskettes looked like.