Yes, I'm well aware of that. What I am saying, is that I don't believe for a second that those giant mechs, as they were depicted, could be analog-based electronics (not even an "older" Mk III).
Analog electronics are far more bulky, far more power consuming, far more costly for the end-result, and ultimately limited in processing power as far as available space, compared to digital and solid-state design. It was an utterly nonsensical techno-detail to introduce into the storyline. Analog for low-power controls, computer logic, and human interfaces has "left the building" since the 80's. Analog for high-power-electronics
is a different story, of course.
In a similar concept, an "analog iPhone" would be utterly impossible at the size and cost and performance we experience today, with the iPhone that does exist.