Bring:
	Capacitor with more capacitance
		Talk about farads
	Ignition coil and spark plug?
		Power with computer PSU maybe
	Multimeter

One more part:  diodes
	I skipped over these last time because I really wanted to move toward transistors
	Light-emitting diodes

A very central component:  Transistors
	Three connections
	Base: "switch" input, allows power to flow from collector to emitter
	Collector:  Input power
	Emitter:  Output
	Kinda like a relay, but without the isolation
	NOT binary.  A little power to the base allows a little from collector to emitter
	This makes it useful for analog electronics
		Like an amplifier!
	But, we need to go a different direction, toward digital electronics

A note about that though:
	I have a "digital" amp in my living room
	The controls are digital
	The amplification process is analog
	I play music on my computer that arrives digitally from Spotify
	It's possible to manipulate volume, etc. digitally
	Eventually, it reaches my headphone amp (still digital)
	The headphone amp converts it to an analog signal
	The headphones are purely analog

Only 0 and 1:
	For logic circuit diagrams we'll do:
	0 means "low enough"
	1 means "high enough"
	What's "enough"?  More than something
	Larger something:  Bigger switching delay, more power use
	Smaller something:  Smaller switching delay, but could it be too small to detect?
	So it depends on the application.  CPU voltage is usually less than 2.
	We'll consider transistors to be "on" or "off"
		If you set the frequency too high, they might not have finished changing...
	At some level, all electronics is analog

Next series on this:  Gates!  
	We'll talk about computer parts first.

Parts of Computers!
	Like half of you have already built a computer
		Help everybody else understand

Motherboard / Mainboard:
	More and more stuff is soldered on
	Single-board computer:  Just solder everything on!
	Probably most important choice:  Chipset
		It'll dictate what CPUs work, what communication standards, etc
	Connectors:  These mostly just expose features of the chipset
	Video:  Often integrated into the CPU and Chipset
	"Peripherals":  Network card, USB controller, RAID controller, marginal sound card
		Sometimes stuff is integrated into the chipset instead
	North vs. South Bridge:  Mostly historical at this point

CPU:
	We know a lot about these already
	Should live under a heatsink

Memory:
	Main memory here, RAM
	Dictated mostly by the motherboard, but you could buy a lot or a little
	Supported frequency varies

Video Card:
	I'll try not to talk about these forever

Power supply:
	If building a computer, buy quality.  Won't go obsolete as fast as the other stuff

Case:
	Strictly speaking optional.  Protects against cats

Long-term storage:
	NAND flash, or maybe spinning 

Other stuff:
	Do you want a CD-ROM drive?  Usually these attach to the SATA controller
	Memory card reader?  Usually these just attach to a USB header
	Better sound card?  A USB or optical DAC might make more sense.