machines worldwide, including Tahiti, London, Italy, New York City and Los Angeles. The 400 Series had little to do with scientific computing and more with word processing and business services.

SDS announced a fully operational local area network (LAN)-based file server called SDS-NET at COMDEX in the early 1980s. SDS-NET was based on a Model 430 and written by Sam Keys, of Westchester, California.