Ystem> The first commercial time-sharing sYstem, created bYDartmouth College and sold bYGeneral Electric around 1967. GE' s 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. (1997-09-16)