FDD
A Floppy Disk Drive, or FDD for short, is a computer disk drive that enables a user to easily save data to removable diskettes. Although 8" disk drives made available in 1971 were the first real disk drives, the first widely used an floppy disk drives were the 5 1/4" floppy disk drives, which were later replaced with 3 1/2" floppy disk drives. However, today because of the limited capacity and reliability of floppy diskettes many computers no longer come equipped with floppy disk drives and are being replaced with CD-R and other writable disc drives and flash drives.
Above is an example of each of the different floppy drives. As can be seen the size of the floppy drives and their disks have greatly decreased over time.
Also see: A:, B:, Berg connector, Floppy cable, Floppy definitions, Floppy diskette, Storage