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Updated: July 28, 2023 by Abby | Leave a Comment
Key Points: The ABC of John Atanasoff and Clifford Berry Working on his doctoral thesis in theoretical physics at the University of […]
Updated: April 16, 2024 by History Computer Staff | Leave a Comment
The Abaque Rhabdologique of Claude Perrault The Parisian doctor of medicine Claude Perrault (see biography of Claude Perrault) was a remarkable […]
Wilhelm Schickard Wilhelm Schickard (see biography of Schickard) was born in the small south German town Herrenberg (near Tübingen) and […]
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: The Sketch of Leonardo da Vinci (Created with the expert advice of Mr. Silvio Hénin, Milan, Italy) Leonardo da Vinci (see […]
Who Was Gottfried Wilhelm Leibniz? Gottfried Wilhelm Leibniz was a well-known German mathematician, physicist, and philosopher. Noted for his independent […]
Updated: July 28, 2023 by Lisha Pace | Leave a Comment
: René Grillet de Roven In 1673 the Parisian mechanician and watchmaker of His Royal Highness King Louis XIV—René Grillet de […]
: The Calculating Machines of Sir Samuel Morland The polymath Samuel Morland (see biography of Samuel Morland), was a notable English […]
: Who was Ryoichi Yazu? Ryoichi Yazu was a Japanese inventor. He is well known for his invention of Japan’s first […]
Updated: December 6, 2022 by Lisha Pace | Leave a Comment
Who is Alexander Rechnitzer? Alexander Rechnitzer was an exceptionally gifted mechanic and inventor who laid the ground for fully automatic calculating […]
Updated: July 28, 2023 by Rebecca Bales | Leave a Comment
History of Computers and Computing, Mechanical calculators, 20th century, Wales Charles Wales Charles Wales, a genius of mechanical motion and a native […]
History of Computers and Computing, Mechanical calculators, 20th century, Hopkins William and Hubert Hopkins machines The Hopkins brothers, William and Hubert, […]
Ensign Electric Calculating Machine Ensign Electric Calculating Machine is a highly developed, electrically driven adding and subtracting machine, particularly suited for […]
History of Computers and Computing, Mechanical calculators, 20th century, Gauss of Christel Hamann Gauss of Christel Hamann The German engineer Christel Hamann […]
James White Many thanks to Mr. Denis Roegel, Professor at Loria, France, for his seminal work on White’s adding machine In 1822, […]
Ramón Verea In 1878 Ramón Silvestre Verea García (1833-1899), a Spaniard, newspaper publisher in New York, patented a direct-multiplying machine, which […]
Mathias Bäuerle elder (1838-1916) and his son Tobias Bäuerle (1863-1933) Mathias Bäuerle In 1903, the German clock manufacturer from Schwarzwäld—Bäuerle Uhrenfabrik (Clock […]
Portrait of Abraham Stern (with one of his calculating machines) from 1823, artist Jan Antoni Blank The problem with the world […]
Izrael Abraham Staffel The Polish Jew Izrael Abraham Staffel was born in 1814 to an impoverished family in Warsaw, Poland, then […]
History of Computers and Computing, Mechanical calculators, 19th century, Joseph Abraham Valentine Turck Joseph Turck Joseph Abraham Valentine Turck (1870-1956) was a […]
: 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 […]
Updated: July 27, 2023 by Heather | Leave a Comment
: Chaim Zelig Slonimski The Polish/Russian Jew Chaim Zelig Slonimski (see biography of Chaim Zelig Slonimski) was a Hebrew publisher, […]
History of Computers and Computing, Mechanical calculators, 19th century, Eduard Selling : Eduard Selling In 1886 the professor of mathematics at […]
: The Machines of David Roth The pin-wheel mechanism, known from the sketch of Leibniz and machines of Poleni (1709) […]