Floppy Drives By michaela huberdeau Sep 20, 1972 8-inch: Memorex 650 175 kB 1.5 megabit unformatted Sep 20, 1978 5 1/4 inch DD 360 or 800 kB 360 kB Mar 20, 1982 5 1/4-inch HD 1.2MB Sep 20, 1984 3 1/2 inch DS DD 1mb Sep 20, 1986 3 1/2-inch MB 1.44 MB Sep 20, 1987 3 1/2 -inch ED 2.88 MB Period: Sep 20, 1990 to Sep 21, 2016 Floppy drive