A floppy disk, or diskette, is a disk storage medium composed of a disk of thin and flexible magnetic storage medium, sealed in a rectangular plastic carrier lined with fabric that removes dust particles. They are read and written by a floppy disk drive (FDD).
Floppy disks, initially as 8-inch (200 mm) media and later in 5.25-inch (133 mm) and 3.5-inch (89 mm) sizes, were a ubiquitous form of data storage and exchange from the mid-1970s well into the first decade of the 21st century.
By 2010, computer motherboards were rarely manufactured with floppy drive support; 3 1⁄2" floppies could be used as an external USB drive, but 5 1⁄4", 8", and non-standard drives could only be handled by old equipment.
While floppy disk drives still have some limited uses, especially with legacy industrial computer equipment, they have been superseded by data storage methods with much greater capacity, such as USB flash drives, portable external hard disk drives, optical discs, memory cards, and computer networks.
... Floppy disk drives are rarely fitted to modern computers and are obsolete for normal purposes, although internal and external drives can be fitted if required ... Floppy disks may be the method of choice for transferring data to and from very old computers without USB or booting from floppy disks, and so they are sometimes used to ... with removable storage like older Yamaha music keyboards are also dependent on floppy disks, which require computers to process them ...
... medium—a single-sided 8-inch-diameter read/write "memory disk"—the IBM diskette, to replace punched cards ... See also History of the floppy disk IBM introduces Winchester hard disk drive technology with the IBM 3340 direct access storage device for use on their System/370 mainframes ... See also History of hard disk drives While working as a consultant to Intel, Gary Kildall, an instructor at the Naval Postgraduate School, writes CP/M, a simple "Control Program ...
... Floppy disk size is often referred to in inches, even in countries using metric and though the size is defined in metric ... The ANSI specification of 3 1⁄2-inch disks is entitled in part "90 mm (3.5 in)" though 90 mm is closer to 3.54 inches ... Historical sequence of floppy disk formats Disk format Year introduced Formatted Storage capacity Marketed capacity 8-inch IBM 23FD (read-only) 1971 79.75 KB ? 8-inch Memorex 175 ... KB 1.5 megabit 8-inch SSSD ...
... with a special program they are keeping on a floppy disk ... Kottegrön, who has been hiding in a briefcase, tries to steal the disk but fails ... two friends, left in the office, discover that the men forgot to bring the floppy disk with them ...
... and two single-sided, double density, 5.25 inch floppy disk drives (180 kiB) ... CP/M 3.0, one double-sided drive and a hard disk drive with a capacity of a bit less than 10 MiB ... single-sided, double density 3.5 inch floppy disk (360 kiB) ...
Famous quotes containing the word disk:
“Unloved, that beech will gather brown,
This maple burn itself away;
Unloved, the sun-flower, shining fair,
Ray round with flames her disk of seed,
And many a rose-carnation feed
With summer spice the humming air;”
—Alfred Tennyson (18091892)