Floppy & USB Timeline

8-inch: IBM 23FD (read-only)

Sep 29, 1971

~ Not sold Commercially yet
~Formatted storage capacity = 79.75 kB

Floppy

Period: Sep 29, 1971 to Sep 29, 1999

8-inch: Memorex 650

Sep 29, 1972

~Formatted storage capacity = 175 kB
~Marketed capacity = 1.5 megabit unformatted

8-inch: SSSDIBM & FD/Shugart 901

Sep 29, 1973

~Formatted storage capacity = 237.25 kB
~Marketed capacity = 3.1 megabit unformatted

8-inch: DSSDIBM & FD/Shugart 850

Sep 29, 1976

~Formatted storage capacity = 500.5 kB
~Marketed capacity = 6.2 megabit unformatted

5¼-inch (35 track) Shugart SA 400

Sep 29, 1976

~Formatted storage capacity = 87.5 kB
~Marketed capacity = 110 kB

8-inch DSDDIBM & FD/ Shugart 850

Sep 29, 1977

~Formatted storage capacity = 980 kB - CP/M or 1200 kB - MS-DOS FAT
~Marketed capacity = 1.2

5¼-inch DD

Sep 29, 1978

~Formatted storage capacity = 360 kB or 800 kB
~Marketed capacity = 360kB

5¼-inch Apple Disk II (Pre-DOS 3.3)

Sep 29, 1978

~Formatted storage capacity = 113.75 kB = 256 byte sectors, 13 sectors/track, 35 tracks
~Marketed capacity = 113 kB

5¼-inch Atari DOS 2.0S

Sep 29, 1979

~Formatted storage capacity = 90 kB
~Marketed capacity = 90 kB - 128 byte sectors, 18 sectors/track, 40 tracks

5¼-inch Apple Disk II (DOS 3.3)

Sep 29, 1980

~Formatted storage capacity = 140 kB
~Marketed capacity = 140 kB - 256 byte sectors, 16 sectors/track, 35 tracks

3½-inch HP single sided

Sep 29, 1982

~Formatted storage capacity = 256×16×70 - 280 kB
~Marketed capacity = 264 kB

3-inch

Sep 29, 1982

~Formatted storage capacity = 360 kB
~Marketed capacity = 125 kB SS/SD, 500 kB DS/DD

5¼-inch RX50 (SSQD)

Sep 29, 1982

~Formatted storage capacity = 1200 kB
~Marketed capacity = 1.2 MB

3½-inch DS DD

Sep 29, 1982

~Formatted storage capacity = 400 kB
~Marketed capacity = 400 kB

5¼-inch Atari DOS 3

Sep 29, 1983

~Formatted storage capacity = 127 kB - 128 byte sectors, 26 sectors/track, 40 tracks
~Marketed capacity = 130 kB

3½-inch SS (DD at release)

Sep 29, 1983

~Formatted storage capacity = 360 kB - 400 on Macintosh
~Marketed capacity = 500 kB

3½-inch DS DD

Sep 29, 1984

~Formatted storage capacity = 720 kB - 800 on Macintosh, 880 KB on Amiga
~Marketed capacity = 1 MB

3-inch DD

Sep 29, 1984

~Formatted storage capacity = 720 kB

3-inch Mitsumi Quick Disk

Sep 29, 1985

~Formatted storage capacity = 128 to 256 kB

5¼-inch Perpendicular

Sep 29, 1986

~Formatted storage capacity = 10 MB

5¼-inch Perpendicular

Sep 29, 1986

~Formatted storage capacity = 10 MB

3½-inch HD

Oct 1, 1987

Formatted Storage Capacity: 1440 kB or 1760 kB on Amiga
Marketted Capacity : 1.44 MB or 2.0 MB unformatted

3½-inch ED

Oct 1, 1987

Formatted Storage Capacity: 1440 kB or 1760 kB on Amiga
Marketted Capacity : 1.44 MB or 2.0 MB unformatted

2 inch

Sep 29, 1988

~Formatted storage capacity = 720 kB

3½-inch Floptical (LS)

Oct 1, 1991

Formatted Storage Capacity: 20385 kB
Marketted Capacity : 21 MB

USB 0.8

Dec 1, 1994

USB

Period: Dec 1, 1994 to Jan 1, 2013

USB 0.9

Apr 1, 1995

USB 0.99

Aug 1, 1995

USB 1.0

Jan 1, 1996

Speed = Low Speed (1.5 Mbit/s), Full Speed (12 Mbit/s)

3½-inch Superdisk (LS-120)

Oct 1, 1996

Formatted Storage Capacity: 120.375 MB
Marketted Capacity : 120 MB

3½-inch Superdisk (LS-240)

Oct 1, 1997

Formatted Storage Capacity: 240.75 MB
Marketted Capacity : 240 MB

USB 1.1

Aug 1, 1998

3½-inch HiFD

Oct 1, 1999

Formatted Storage Capacity: 150/200 MB
Marketted Capacity : 150/200 MB

USB 2.0

Apr 1, 2000

USB 3.0

Nov 1, 2008

Speed: SuperSpeed (5 Gbit/s)
Also called USB 3.1 Gen 1.

USB 3.1

Jan 1, 2013

Speed: SuperSpeed+ (10 Gbit/s)
Also called USB 3.1 Gen 2.