Data processing equipment and computers including laptop computers, computer hardware and software, computers including laptop computers and incorporating folding keyboards, computers including laptop computers and incorporating terraced keyboards or keyboards specially adapted to alleviate incidence of repetitive strain injury (RSI), computer input devices and peripheral devices including ergonomic devices or devices specially adapted to alleviate incidence of RSI, computer keyboards including terraced keyboards or keyboards specially adapted to alleviate incidence of RSI, computer mouses including mouses specially adapted to alleviate incidence of RSI, ergonomic supports for use with computer input devices including keyboards or mouses, hand supports for computer input devices, hand supports for keyboards and mouses including supports specially adapted for alleviating incidence of RSI, mouse covers incorporating ergonomic hand supports or supports specially adapted for alleviating incidence of RSI, phonograph records, compact discs including super audio CDs and DVD Audio discs, pre-recorded audio tapes, pre-recorded video tapes, video and optical discs including DVDs-and high density DVDs and other media for reproduction of sound or images included in class 9