Thanks! I must admit it’s hard to find an answer myself without the vocabulary.
This is where LLMs really shine.
That's a very good point, I was trying to google how buttons on a calculator communicate with the chips underneath, basically how contacts work, and Googling that kept giving me stuff about calculators not electronics, but ChatGPT gave me the perfect bullet point breakdown because it understood the context of my more general question. People often communicate/think in analogies to the underlying concepts.