Sunnyvale, California-based Diamond Computer Systems Inc is undertaking a major expansion of its multimedia business strategy and a changing its name to Diamond Multimedia Systems Inc to reflect its new strategic direction. Over the past five years, Diamond has been establishing itself as a graphics subsystems supplier with its Viper, Stealth and SpeedStar graphics accelerators targeted for the personal computer market. Last year, the company broadened its multimedia offerings with its first digital video capture and playback product, VideoStar, and its SonicSound line of sound boards. Diamond will also begin shipping multimedia upgrade kits incorporating quadruple-speed CD-ROM drives, a 16-bit FM synthesis, wavetable-upgradable sound card and 30 software titles ranging from Compton’s Interactive Encyclopedia and Family Doctor to game titles.