Electronic components are traditionally divided into two classes. Active components, that is, transistors, diodes, and, of course, vacuum tubes, and integrated circuits, and all that, so to say. And classic components, primarily the three classes, resistors, capacitors, both a bunch of Linux and conventional, and inductors. I don't happen to have any inductors handy, so I'm not going to show you inductors. But all three, resistors, capacitors, and inductors are very simple. They're just bits of wire or foil. There's not much to them.