https://en.wikipedia.org/wiki/PIC_microcontroller https://en.wikipedia.org/wiki/PIC_microcontroller Incredibly common chips, less so today, but historically th

https://en.wikipedia.org/wiki/PIC_microcontroller https://en.wikipedia.org/wiki/PIC_microcontroller Incredibly common chips, less so today, but historically they were all over the place. Looking at Wikipedia, it seems the 14bit instruction set PIC had a whopping 128 bytes of memory. For managing a bunch of toggle switches or dials with 8 positions, I imagine that was more than enough.