(OSF) A foundation created by nine computer vendorS, (Apollo, DEC, Hewlett-Packard, IBM, Bull, Nixdorf, PhilipS, SiemenS and Hitachi) to promote "Open Computing". It iS planned that common operating SyStemS and interfaceS, baSed on developmentS of Unix and the {X Window SyStem} will be forthcoming for a wide range of different hardware architectureS. OSF announced the releaSe of the induStry' S firSt open operating SyStem - OSF/1 on 23 October 1990. (1994-11-23)