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Calculating Machines mailing list: *, What's new. *, TYPENKORB English summaries. *, ETCetera Article. *, Curta IACC Article. *, Pocket Cash Registers ...
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192.220.96.166/actions.html
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Calculator - Wikipedia, the free encyclopedia
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A calculator is a device that is used for performing mathematical calculations. It differs from a computer by having a limited problem solving ability and an interface optimized for interactive calc...
en.wikipedia.org/wiki/Calculator
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The basic problem of the design of a mechanical calculator was how to move a gear an amount proportional to the number to be added. The simple stylus/slide adders had an easy answer Also, in the case of multiplications and divisions, the s...
http://www.hpmuseum.org/mechwork.htm
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Calculating machine - Wikipedia, the free encyclopedia
A calculating machine is a machine designed to come up with calculations or, in other words, computations. One noted machine was the Victorian British scientist Charles Babbage's Difference Engine (...
en.wikipedia.org/wiki/Calculating_machine
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CALCULATING MACHINES. Machines of this kind are designed to produce arithmetical and other tables which shall be rigorously correct. In navigation and the higher branches of astronomy the use of tables is very great, and, being constructed by human heads and hands, they all contain errors of greater or less magnitude.
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www.history.rochester.edu/appleton/c/calcmac.html
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LEGO® BRICKS AND CALCULATING MACHINES ... Can you build a LEGO® calculating machine?; Before the advent of Gak, many folk built mechanical calculating machines! The abacus ( invented by those wacky Babylonians about 3000 BC ) is regarded as the first calculating machine whose beads can be used to add, subtract,
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weirdrichard.com/machine.htm
weirdrichard.com/machine.htm
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Early Adding and Calculating Machines ... A wide variety of calculating machines were invented beginning in the early 17th century. Stepped-drum calculating machines solved lengthy multiplication problems by successive addition and solved lengthy division problems by successive subtraction.
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www.earlyofficemuseum.com/calculating_machines.htm
www.earlyofficemuseum.com/calculating_machines.htm
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Made in England by Guy's Calculating Machines Ltd., Wood Green, London N22. Distributed by Muldivo Calculating Machine Co. Ltd.,49 Queen Victoria Street, London EC4. ... Guy's Calculating Machines Ltd. was the only British manufacturer of the Odhner type pin-wheel calculator.
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www.vintagecalculators.com/html/guy_s_calculating_machi...
www.vintagecalculators.com/html/guy_s_calculating_machines.html
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Adding and Listing Machines; ... The following table provides data on worldwide sales of Burroughs machines from 1895 through 1926. Through 1910, the data cover only adding-listing machines. Beginning in 1911, the data also cover calculators and other types of bookkeeping machines. ... Antique Adding and Calculating Machines...
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www.officemuseum.com/calculating_machines_adding_listin...
www.officemuseum.com/calculating_machines_adding_listing.htm
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