Saturday, January 2, 2010

kind of computer disk drives cable

Floppy Disk Drive
Floppy Disk Drives 8 5 3.jpg
8-inch, 5¼-inch (full height), and 3½-inch drives
Date invented 1969 (8-inch),
1976 (5¼-inch),
1982 (3½-inch)
Invented by IBM team led by David L. Noble[1]
Connects to Controller via:
  • Cable
8-inch, 5¼-inch, and 3½-inch floppy disks

A floppy disk is a data storage medium that is composed of a disk of thin, flexible ("floppy") magnetic storage medium encased in a square or rectangular plastic shell.

Floppy disks are read and written by a floppy disk drive or FDD, the initials of which should not be confused with "fixed disk drive", which is another term for a (nonremovable) type of hard disk drive. Invented by IBM, floppy disks in 8-inch (200 mm), 5¼-inch (133.35 mm), and 3½-inch (90 mm) formats enjoyed many years as a popular and ubiquitous form of data storage and exchange, from the mid-1970s to the late 1990s. While floppy disk drives still have some limited uses, especially with legacy industrial computer equipment,[2] they have now been largely superseded by USB flash drives, external hard disk drives, CDs, DVDs, and memory cards.

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