Computer organization
	Components:
		Processor (CPU): executes instructions
		Memory: stores programs and data
		Long-term storage: keeps data even when computer is off
		Input/output (I/O): provides data to process, stores results
	Textbook view:
		Datapath			Processor
		Control
		Memory (RAM, HDD)
		Input
		Output
	Our focus:
		Processor
			Today's technology: millions of transistors and circuits
			In order to comprehend what's going on, we need …
	Abstraction
		Hides levels of complexity
		Easier to see the "big picture"
		Example: Swap program