1) Mechanical calculator
Found on
https://www.crosswordclues.com/clue/arithmometer
The Arithmometer or Arithmomètre was the first digital mechanical calculator strong enough and reliable enough to be used daily in an office environment. This calculator could add and subtract two numbers directly and could perform long multiplications and divisions effectively by using a movable accumulator for the result. Patented in France by ...
Found on
http://en.wikipedia.org/wiki/Arithmometer
• (n.) A calculating machine.
Found on
http://thinkexist.com/dictionary/meaning/arithmometer/
(from the article `Baldwin, Frank Stephen`) His first calculator, the arithmometer (patented 1875), could add, subtract, multiply, and divide. Economic conditions, however, prevented its ... ...repetitive operations efficiently. With other activities being mechanized, why not calculation? In 1820 Charles Xavier Thomas de Colmar of Franc...
Found on
http://www.britannica.com/eb/a-z/a/100
Ar`ith·mom'e·ter noun [ Greek ... number +
-meter : confer French
arithmomètre .] A calculating machine.
Found on
http://www.encyclo.co.uk/webster/A/121
No exact match found.
