Demo:
	Non-contact amp reading?
	Wire gauges?

Remember the test next week!

Off and on with gates:
	Can select output from two operations
	A CPU with two operations
	Instruction set would have only two instructions

Synchronized with the clock, we could load successive opcodes
	Fixed vs. variable size instructions

Instruction cycle:
	Wikipedia's diagram:  https://en.wikipedia.org/wiki/Instruction_cycle
	Maybe more states than the instruction pipeline diagram
	A pipeline yields one instruction per cycle, maybe
		More complicated than that
	An interruption would have to stop this pipeline
		What would we have to save?
	Frequent interruptions would slow the CPU down

Optimizations:
	There are a lot of these
	Branch prediction:  How do we know what instructions to fetch?
		Could we do both, then jump to the right one?
		More common case?

Separate units for more instructions:
	x87, for example
	Generally end up integrated into the CPU
	GPU is different enough to still end up separate
		AVX extensions...