https://www.youtube.com/watch?v=PLYosK87D8E Did I share this
   already? *I'm really impressed about this. I've always been a
   computer guy. *Straight to programming. *All the "before" stuff
   I understood already in a general way (0's and 1's are basically
   telegraph key presses) but the way he goes through this slowly
   and carefully and thoroughly is really amazing. *He filled in
   ALL sorts of little gaps in my knowledge from an entirely
   different perspective than I'm used to. If you do ANY
   programming, watch this stuff. *Go through it. *You'll walk away
   very impressed the stuff your computer/phone/tablet is doing...
   because THIS is the stuff it comes from. *This. Expect a
   headache; the language is not what you're used to if you never
   did electrical engineering/controls stuff. *It feels like
   stepping inside of my computer and walking around the circuits.
     What impresses me is that I never realized the technical
   difficulties that they must've gone through for the
   miniturization of this stuff to end up in the form that we use
   today.   Consider how these circuits were reduced to the level
   of electrons and electron holes.. and now we're trying to go
   further... it's sinking in.