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birdsandbats

Typewriter

Taken July 28 2018

Typewriter
birdsandbats, 20 Aug 2018
    • Jake
      I never knew zoos had this amazing species, aren’t they endangered
      How many do they have ;)
      birdsandbats likes this.
    • birdsandbats
      @Jake Only one. It's a shame, not many are left.
    • Andrew Swales
      It is not a typewriter - it has no letters on the keys! It is a mechanical adding machine; a quite late hand-cranked one (from just before they went electric) as it has a ribbon printer. The key-board and internals of this one are pretty much the same as the first wooden-box versions of the Felt & Tarrant 'Comptometer'. It was an ancestor of the desk-top and pocket calculators, which of course have been succeeded by the pc, tablet and mobile phone...
      birdsandbats likes this.
    • birdsandbats
    • Andrew Swales
      This was how the World worked before Clive Sinclair changed it for us all. The principal was invented in France in the mid 1600s, but made economic in your country in the 1880s. It is an amazing box full of cranks, pulleys and levers. Every bank, office and Government department had rooms full of women 'comptometerists'. The machines, could (still can) perform addition, subtraction and quite complicated multiplication and long division calculations, and quickly too with the right operator. Doesn't look as though this zoo/museum attempted to tell the story?
    • birdsandbats
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  • Category:
    Special Memories Zoo (Closed)
    Uploaded By:
    birdsandbats
    Date:
    20 Aug 2018
    View Count:
    644
    Comment Count:
    6

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