Tron/Etron and variants most likely if any operating system at all. What powers non-smart refrigerators, dishwashers, washing machines, microwave ovents, etc? T

Tron/Etron and variants most likely if any operating system at all. What powers non-smart refrigerators, dishwashers, washing machines, microwave ovents, etc? Tron for many of them. https://en.wikipedia.org/wiki/TRON_project https://en.wikipedia.org/wiki/TRON_project