Updated: May 23, 2025 by Rebecca Bales | Leave a Comment
Ensign Electric Calculating Machine Key Points Ensign Electric Calculating Machine is a highly developed, electrically driven adding and subtracting machine, particularly suited […]
Gauss of Christel Hamann The German engineer Christel Hamann (1870-1948) (biography of Hamann) is an outstanding figure in the world […]
James White Many thanks to Mr. Denis Roegel, Professor at Loria, France, for his seminal work on White’s adding machine. In […]
Ramón Verea In 1878 Ramón Silvestre Verea García (1833-1899), a Spaniard, and newspaper publisher in New York, patented a direct-multiplying […]
Mathias Bäuerle In 1903, the German clock manufacturer from Schwarzwäld — Bäuerle Uhrenfabrik (Clock Factory), Sankt Georgen, launched his adding […]
The problem with the world is that the intelligent people are full of doubts, while the stupid ones are […]
Joseph Turck Joseph Abraham Valentine Turck (1870-1956) was a famous figure in the world of mechanical calculators. He is the […]
Izrael Abraham Staffel The Polish Jew Izrael Abraham Staffel was born in 1814 to an impoverished family in Warsaw, Poland, […]
Updated: May 23, 2025 by Heather | Leave a Comment
: Luigi Torchi was a carpenter and inventor who was credited for inventing the first direct multiplication machine. This […]
: Jean-Baptiste Schwilgué In 1844 the French Jean-Baptiste Schwilgué from Strasbourg (see biography of Jean-Baptiste Schwilgué), together with his son […]
: Chaim Zelig Slonimski The Polish/Russian Jew Chaim Zelig Slonimski (see biography of Chaim Zelig Slonimski) was a Hebrew publisher, […]
: Eduard Selling In 1886 the professor of mathematics at the University of Würzburg, Germany, Eduard Selling (1834-1920) (see biography […]
Updated: May 23, 2025 by History Computer Staff | Leave a Comment
Henry Pottin In the middle 1870s, the French engineer Henry Pottin patented the first key-set crank-operated machine and made the […]
: The Machines of David Roth The pin-wheel mechanism, known from the sketch of Leibniz and machines of Poleni (1709) […]
Who Was Willgodt Odhner? Willgodt Odhner was a Swedish inventor and engineer. He invented a mechanical calculator and founded a […]
History of Computers and Computing, Mechanical calculators, 19th century, Maurel and Jayet The arithmaurel of Maurel and Jayet In 1841 in […]
Who was Wilhelm Küttner Friedrich Wilhelm Küttner (1841-1920), a German businessman from Burgk bei Potschappel (near Dresden), chose to spend […]
Updated: May 23, 2025 by Abby | Leave a Comment
: The Adding Device of Kummer Several people experimented with versions of simple mechanical calculators that involved strips of metal with […]
: Manipolatore Aritmetico of Niccola Guinigi (Created with the expert advice of Mr. Silvio Hénin, Milan, Italy) In the 1850s (or even […]
: George Grant’s Calculating Machines Between 1872 and 1898, the American George Barnard Grant (see biography of George Barnard Grant) of […]
: The Ternary Calculating Machine of Thomas Fowler During the 1830s the Englishman Thomas Fowler (see biography of Thomas Fowler) became […]
: Joseph Edmondson’s circular calculating machine In 1883 Joseph Edmondson from Halifax, England, received three Great Britain patents for a circular […]
Pafnuty Chebyshev Pafnuty Lvovich Chebyshev (Пафнутий Львович Чебышёв) (1821-1894) was a prominent Russian mathematician, professor of algebra, number theory, and […]
Otto Büttner In 1883 Karl Otto Büttner, a mechanical engineer from Dresden, Germany, patented (together with Carl Gustav Th. Heyde) […]
