Floppy+Disk

A soft magnetic disk. It is called //floppy// because it flops if you wave it (at least, the 5??-inch variety does). Unlike most hard disks, floppy disks (often called //floppies// or //diskettes//) are portable, because you can remove them from a disk drive. Disk drives for floppy disks are called //floppy drives.// Floppy disks are slower to access than hard disks and have less storage capacity, but they are much less expensive. And most importantly, they are portable. Floppies come in three basic sizes:
 * 8-inch:**The first floppy disk design, invented by IBM in the late 1960s and used in the early 1970s as first a read-only format and then as a read-write format. The typical desktop/laptop computer does not use the 8-inch floppy disk.
 * 5??-inch:** The common size for PCs made before 1987 and the predecessor to the 8-inch floppy disk. This type of floppy is generally capable of storing between 100K and 1.2MB (megabytes) of data. The most common sizes are 360K and 1.2MB.
 * 3??-inch:**//Floppy// is something of a misnomer for these disks, as they are encased in a rigid envelope. Despite their small size, microfloppies have a larger storage capacity than their cousins -- from 400K to 1.4MB of data. The most common sizes for PCs are 720K (double-density) and 1.44MB (high-density). Macintoshessupport disks of 400K, 800K, and 1.2MB.

This disk we use it a lot today well we use to becasue know with the CD ( that Yoshiro Nakamats invented as well), its purpose is for you can save things but not in the PC you can save your work and take it to another computer.It was invented by Yoshiro Nakamats in the mid 1970s. Right now this disk isnt that usefull because theres new inventions like the USB or Flash Drives, memory cards Pedro Botero Maya