You could try the thing that made it click for me, long after x86 was dominant. Show them a CPU running on Logisim (or the like, such as the newer Digital) and

You could try the thing that made it click for me, long after x86 was dominant. Show them a CPU running on Logisim (or the like, such as the newer Digital) and show how when you plug a program into a ROM, it turns into wires lighting up and flipping gates/activating data lines/read registers etc.