Quote from their site: "The site provides an historical overview of mathematical and computational technology, spanning from the abacus to the Apple computers." The pictures alone make it worth the visit.
The Institute for Advanced Study computer (above) is on display at the Smithsonian Institution in Washington, D.C. The protruding cylinders at the base of the machine are CRT storage tubes, each capable of holding 1,024 bits. There were twenty tubes on each side of the machine.
Click the above image to see more detail.