October 1961: Electronic calculators

Made by the Bell Punch Company and marketed through Sumlock Comptometer Ltd., the first electronic desktop calculators are introduced: the ANITA Mark VII (pictured) at the Hamburg Business Equipment Fair in Germany, and the ANITA Mark VIII at the Business Efficiency Exhibition in London.

* www.anita-calculators.info: @
* Entry from Vintage Calculator Web Museum: @
* Entry from oldcalculatormuseum.com: @
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