(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.