<unk>  is a discontinued distributed operating system developed at UCLA during the 1980s. It was notable for providing an early implementation of the single-system image idea, where a cluster of machines appeared to be one larger machine. A desire to commercialize the technologies developed for<unk>  inspired the creation of the<unk>  Computing Corporation which went on to include ideas from<unk>  in various products, including OSF/1 AD and, finally, the SCO–Tandem UnixWare NonStop Clusters product.
LOCUS
AMELY
LOGIC 
FLOW 
Serenic
Hovid 
MORHAN
BIRDEM