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This is a piano keyboard-like overlay for the Commodore 64, turning it into a synthesizer. I have one, but don't have the software for it.

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One of Pixar's early animation workstations.

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Silicon Graphics workstations.

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An early implementation of Ethernet.

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The birth of local data networking.

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The Utah Teapot!

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Prototype datagloves, used in virtual reality experiments in the 1990's.

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Early head mounted displays used in virtual reality experiments.

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A full keyboard designed to be used one-handed. This one's built for the left hand only.

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A collection of user interface devices from all through personal computing history. On the upper shelf are strange and special purpose keyboards. On the lower shelf are joysticks.

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The first personal computer - an Altair 8800.

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CueCats came from Radio Shack crippled - you had to modify the circuit board to make them read normal bar codes. This lead to the company suing people for doing it until they went out of business during the second Dotcom Crash.

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A selection of trackballs.

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I used to have a few of these serial terminals. They're built like tanks. I had to use a hammer and chisel to get one open, and the RF shield inside it nearly cut my hands to the bone. You could drop one four feet and it would still work.