disc(A round, flat piece of nonmagnetic, shiny metal encased in a plastic coating, designed to be read from and written to by optical (laser) technology); disk(A device used to store information. There are two types of disks. Hard disks are permanent and installed into your computer. Floppy disks are portable and can be inserted into and removed from a floppy disk drive); floppy disk(A reusable magnetic storage medium. The floppy disk used today is the rigid 3.5-inch microfloppy that holds 1.44 MB. It is called floppy because the first varieties were housed in bendable jackets)
