The Soul of a New Machine was about the 32-bit Data General Eclipse (1980), follow-on to the 16-bit Eclipse (1974), follow-on to the 16-bit Nova (1969), which p

The Soul of a New Machine was about the 32-bit Data General Eclipse (1980), follow-on to the 16-bit Eclipse (1974), follow-on to the 16-bit Nova (1969), which provided the instruction set for the Alto. So not the same machine, but related. (I find the Nova instruction set strangely similar to the ARM in many ways, but maybe I've just spent too much time looking at the ARM1.)