Frisbee Plastics, the original molder. After learning that he could produce his own disc more cheaply, in 1955 Morrison designed a new model, the Pluto Platter, the archetype of all modern flying discs. He sold the rights to Wham-O on January 23, 1957, and in 1958 Morrison was awarded U.S. Design Patent D183,626 for his product. In June 1957, Wham-O co-founders Richard Knerr and Arthur "Spud" Melin gave the disc the brand name "Frisbee" (pronounced "friz'-bee") after learning that Northeastern college students were calling the Pluto Platter by that term, which derived from the name of the Connecticut-based pie manufacturer, Frisbie
Hard disk drive platter Hard disk drive platter A hard disk drive platter (or disk) is the circular disk on which magnetic data is stored in a hard disk drive. The rigid nature of the platters in a hard drive is what gives them their name (as opposed to the flexible materials which are used to make floppy disks). Hard drives typically have several platters which are mounted on the same spindle. A platter can store information on both sides, requiring two heads per platter. The magnetic surface of each platter is divided into small sub-micrometer-sized magnetic regions, each of which is used to