Communications of the ACM
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From BLOG@CACM
How Do You Calculate with the Sector?
The sector was developed in the second half of the 16th century, and was in widespread use until the end of the 19th century,
From BLOG@CACM
The Model Maker of Leonardo da Vinci, Blaise Pascal, and Charles Babbage
Discovery of a previously unknown replica of the legendary Swiss Millionaire calculating machine at Carnegie Mellon University in Pittsburgh, PA.
From BLOG@CACM
Mystery Dating of the World-famous 'Millionaire' Calculating Machine Solved
Regarding the discovery of new documents about the H.W. Egli AG (Zurich) company in the Museum für Kommunikation, Berne, Switzerland.
From BLOG@CACM
Did Albert Einstein Calculate on the 'Millionaire' in Zurich?
In 1897, ETH Zurich was the first university in the world to have a copy of the legendary four-species calculating machine Millionaire.
From BLOG@CACM
The Binary System Was Created Long Before Leibniz
There are reports of much older number systems using only two symbols that have been developed mainly in Asia.12