this was part of some research I did when i turned up the reference manual from mascor, ca. 1970, which is the missing link between IBM ACS and the ACS engineers that went to Amdahl.
Whoever wrote this managed to poorly express the design philosophy and also didn't mention that the fork of the earlier version
exists. At first it wasn't even clear about what version of Gnome they were even talking about.
http://bitsavers.org/pdf/mascor
it was one of several large computer startups that failed in the 1970 recession