7.09.2008
DISC / DISK
disc and disk. Use disc in references to phonograph records (disc jockey, discography), optical and laser-based devices (compact disc, laser disc, videodisc), farm implements (disc harrow) and brakes (disc brake). Use disk in references to the magnetic storage devices used with computers (floppy disk, hard disk) and to the fiber and cartilage between the vertebrae (slipped disk). (nyt)