1. DTSS system> The first commercial time-sharing system, created by Dartmouth College and sold by General Electric around 1967. GEs Information Service Divsion ISD marketed DTSS which was running on a system called GE-265 a combination of the front-end processor the Datanet-30 and the GE-235. DTSS was ported and significantly improved by GE ISD around 1965-1966 on a combination of DN-30 and GE-635. This proprietary system, called Mk-II, later improved by GE and renamed Mk-III, is still working today 1997 as part of the GE service bureau that also includes IBM and Unix computers.
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