Floppy and USB Timeline By sbiagini333 Jan 1, 1971 8-inch: IBM 23FD (read-only) Jan 1, 1972 8-inch: Memorex 650 Jan 1, 1973 8-inch: SSSDIBM 33FD/Shugart 901 Jan 1, 1976 8-inch: DSSDIBM 43FD/Shugart 850 Jan 1, 1976 5¼-inch (35 track) Shugart SA 400 Jan 1, 1977 8-inch DSDDIBM 53FD / Shugart 850 Jan 1, 1978 5¼-inch DD Jan 1, 1978 5¼-inch Apple Disk II (Pre-DOS 3.3) Jan 1, 1979 5¼-inch Atari DOS 2.0S Jan 1, 1980 5¼-inch Apple Disk II (DOS 3.3) Jan 1, 1982 3½-inch HP single sided Jan 1, 1982 3-inch Jan 1, 1982 5¼-inch QD Jan 1, 1982 5¼-inch HD Jan 1, 1983 5¼-inch Atari DOS 3 Jan 1, 1983 3½-inch SS (DD at release) Jan 1, 1984 3½-inch DS DD Jan 1, 1984 5¼-inch QD Jan 1, 1984 3-inch DD Jan 1, 1985 3-inch Mitsumi Quick Disk Jan 1, 1986 2 1⁄2-inch Jan 1, 1986 5¼-inch Perpendicular Jan 1, 1987 3½-inch HD Jan 1, 1987 3½-inch ED Jan 1, 1989 2-inch Jan 1, 1991 3½-inch Floptical (LS) Dec 1, 1994 USB 0.8 Apr 1, 1995 USB 0.9 Aug 1, 1995 USB 0.99 Nov 1, 1995 USB 1.0 Release Candidate Jan 1, 1996 3½-inch Superdisk (LS-120) Jan 1, 1996 USB 1.0 Jan 1, 1997 3½-inch Superdisk (LS-240) Apr 1, 1998 USB 2.0 Aug 1, 1998 USB 1.1 Jan 1, 1999 3½-inch HiFD Sep 1, 2008 USB 3.0 Jul 1, 2013 USB 3.1