Behold! The First Computer, a behemoth of a machine that's roughly 50% more complicated than a toaster. It's a behemoth of wires, vacuum tubes, and a 1/1000th of a chance it might actually work.
For a more in-depth look at the First Computer, please see our Technical Specifications page.
Or, if you're feeling bold, you can try Building Your Own First Computer (but don't say we didn't warn you).