@TomF @sinbad having grown up mostly with machines from the pentium era, the way I learned Computer Stuff was to pick a topic, find books on it, and learn whatever I could about that chunk of the computer. I don't think it's possible to know the whole machine, but it's possible to draw a little box around part of it and learn it's contents completely, and then draw another box next to that, and so on. I think I have a pretty good breadth and depth of understanding, but I'll always be learning.