Convergent Technologies Operating System: Difference between revisions

Revision as of 18:48, 20 July 2005

Revision as of 20:19, 14 October 2005

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The '''Convergent Technologies Operating System''', also known variously as '''CTOS''', '''BTOS''' and '''STARSYS''', was a modular, [[message-passing]], multi-process based [[operating system]].

[[Convergent Technologies (Unisys)|Convergent Technologies]]' first product was the IWS (Integrated Workstation) based on the [[Intel 8086]] processor, which had CTOS as its operating system. This was a modular operating system with built in [[local area networking]]. CTOS supports multiple processes or threads, and message-based inter-process communication.

Companies which licensed CTOS included [[Burroughs]] (BTOS) and [[Bull]] (STARSYS). The single largest customer was [[Unisys]], with whom Convergent Technologies merged to become one company in 1988. At its peak, CTOS had over 800,000 users worldwide.