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In addition to computers, I also collect vintage calculators. Most of the ones I have are from the late '70s and early '80s. Most of them use red LEDs for their display, but some of them use other display technologies, such as LCD, fluorescent, or gas-discharge. Some of them are simple four-function types, but many have scientific functions, and a few of them are pocket computers in their own right! I hope to add some more information and pictures to this section in the future.
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Calculators in the museum