The machine operator was called the computer. Early mechanical tools to help humans with digital calculations, such as the abacus, were called calculating machines, by proprietary names, or even as they are now, calculators.
0th century, most calculations were done by humans. The history of computing hardware covers the developments from early simple devices to aid calculation to modern day computers. From left to right ENIAC board, EDVAC board, ORDVAC board, and BRLESC I board, showing the trend toward miniaturization. Current catalogue, Pete Holder Antique American Firearms, Pete Holder sells Antique American Firearms to collectors in Europe, UK, France US Pete Holder, Antique American Firearms,Colt,Revolver,Gun,Firearms,Antique Guns,Revolvers,Smith Wesson,Winchester,Volcanic,Henry,Remington,Remington Elliott, Derringer, Single Action,Double Action, Percussion Revolver, Colt Paterson. Our current catalogue is available to download here. Including percussion revolvers, pinfire, rimfire, hammer sidelock, single action, double action, Colt, Smith.
Antique revolvers and pistols from Phoenix Antique Arms.
Antique American Firearms Colt Revolver Gun Smith Wesson Winchester Volcanic Henry Remington Remington Elliott Derringer Single Action Double Action Percussion Colt Paterson. Current catalogue, Pete Holder Antique American Firearms.
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