I love learning new stuff. *I also love learning old stuff
  because it helps me understand new stuff at a deeper level. PLC
  - Programmable Logic Controllers, as well as newer styles, are
  used in industrial automation. *You have a machine you want to
  do the SAME THINGS over and over again without failing. *Ever.
  *It just has to work. *Millions of times. Coming from a
  computer-programming side of things, I love seeing things from
  the OTHER direction: going from "real world" electrical
  components to programming: Listening to him, I can sense the awe
  of how powerful a thing we take for granted basic computer
  automation really is. As Artificial Intelligence and future
  robotics becomes "all the talk", it's good to remember where it
  all comes from. *This.
  https://www.youtube.com/watch?v=Ei4_HqzUFBs