In 1971, IBM presented its 8-inch floppy disk, which it called a "memory disk." The technologies behind the disk seem quite simple, but were revolutionary at the time, and would help to push computing closer towards the idea of instantly accessible, non-volatile storage, a concept that would later be embodied by the smaller floppy disks and finally the hard drive. A rapidly spinning, metal-oxide coated piece of plastic formed into the shape of a disc was spun at high velocities beneath a read head.
8 Inch Floppy Drive
© 2000 The Computing History Museum, The American University, Washington D.C. 20016
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