One of my avid readers--okay, "avid" is a little strong; it's my niece, who's recovering from surgery and doesn't have anything better to do--wrote that she's amazed they had computers when I was young. Well, check this out: "Calculating Machine" (the cross reference from "Computer") -- "a device which solves problems in addition, subtraction, multiplication and division." Note the picture. It's not much more than an abacus!
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