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Electronic Learning Toys Can Help Educate the World

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Charles Murray
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Re: Electronic learning toys.
Charles Murray   3/4/2013 8:03:00 PM
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It sound incredible now, but didn't a lot of our early computers use similar relays, William K?

William K.
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Re: Electronic learning toys.
William K.   3/5/2013 10:03:53 PM
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A good recollection, Charles. I can recall visiting some science fairs in the late 1950's and early 1960"s and seeing various computational functions executed in hard-coded relay logic. And I have seen some of the older industrical control panels with a hundred or more of the little "ice cube" type relays, all running some fairly complex machines. Those were more the logic type of relays, while the cast-offs that I had were more toward the power types, with contacts designed to switch ten amp loads all day long.

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