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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, Hopkins William and Hubert Hopkins machines The Hopkins brothers, William and Hubert, […]
Dalton Adding Machine James Lewis Dalton (1866-1926) (see biography of James Lewis Dalton) was a successful businessman and amateur mechanic from […]
4 Facts About Curta Calculator Some major facts about the Curta calculator are as follows: Due to its design and mode of […]
History of Computers and Computing, Mechanical calculators, 20th century, Gauss of Christel Hamann Gauss of Christel Hamann The German engineer Christel Hamann […]
Ensign Electric Calculating Machine Ensign Electric Calculating Machine is a highly developed, electrically driven adding and subtracting machine, particularly suited for […]
Ramón Verea In 1878 Ramón Silvestre Verea García (1833-1899), a Spaniard, newspaper publisher in New York, patented a direct-multiplying machine, which […]
James White Many thanks to Mr. Denis Roegel, Professor at Loria, France, for his seminal work on White’s adding machine In 1822, […]
Updated: April 19, 2024 by Rebecca Bales | Leave a Comment
Twilight of the gods – 20th century The 20th century is a time of ubiquity and decline of mechanical calculating machines. […]
Updated: July 21, 2023 by Rebecca Bales | Leave a Comment
3 Facts about Winter’s Keyboard Adder Winter’s Keyboard Adder History On April 12, 1859 Caroline Winter presented her Keyboard, which was called […]
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 […]
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 […]
Updated: July 28, 2023 by Heather | Leave a Comment
: Luigi Torchi was a carpenter and inventor who was credited for inventing the first direct multiplication machine. This […]
Portrait of Abraham Stern (with one of his calculating machines) from 1823, artist Jan Antoni Blank The problem with the world […]
Long before the hand-held calculators, there was the millionaire calculator machine—a large, clunky, and expensive mechanical machine that performed direct […]
: 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, 18th century, Victor Schilt’s keyboard adder : Victor Schilt The calculating machine of the […]
History of Computers and Computing, Mechanical calculators, 19th century, Eduard Selling : Eduard Selling In 1886 the professor of mathematics at […]
Saxonia Calculating Machine History Saxonia was among the first mechanical calculator invented by three Mechanics working in the factory of […]
Updated: April 16, 2024 by History Computer Staff | Leave a Comment
History of Computers and Computing, Mechanical calculators, 18th century, Du Bois D. Parmelee’s key adder Du Bois D. Parmelee In 1850 […]
: The Machines of David Roth The pin-wheel mechanism, known from the sketch of Leibniz and machines of Poleni (1709) […]
Henry Pottin In the middle 1870s, the French engineer Henry Pottin patented the first key-set crank-operated machine and made the […]
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 […]
About the Tate-Layton Machine The Tate-Layton machine was largely based on the work of Thomas de Colmar and other […]
Who Was Willgodt Odhner? Willgodt Odhner was a Swedish inventor and engineer. He invented a mechanical calculator and founded a […]
Updated: July 21, 2023 by Abby | Leave a Comment
Four Facts About Tito Gonnella’s Adding Machines Tito Gonnella’s Adding Machines History The Italian scientist and inventor Tito Filippo Gonnella (1794–1867), professor […]
Updated: July 27, 2023 by Abby | Leave a Comment
: George Grant’s Calculating Machines Between 1872 and 1898, the American George Barnard Grant (see biography of George Barnard Grant) of […]
: Manipolatore Aritmetico of Niccola Guinigi (Created with the expert advice of Mr. Silvio Hénin, Milan, Italy) In the 1850s (or even […]
: The Adding Device of Kummer Several people experimented with versions of simple mechanical calculators that involved strips of metal with […]
: The Ternary Calculating Machine of Thomas Fowler During the 1830’s the Englishman Thomas Fowler (see biography of Thomas Fowler) became […]
Four Facts About Comptometer Comptometer: History In 1884, a young machinist named Dorr Eugene Felt at Ostrander and Huke machine workshop in Chicago observed […]
4 Facts about the Arithmometer of Thomas de Colmar Arithmometer History During his lengthy stay with the armies of Marchall Soult, where […]
History of Computers and Computing, Mechanical calculators, 19th century, Joseph Edmondson : Joseph Edmondson’s circular calculating machine In 1883 Joseph Edmondson from […]
Pafnuty Chebyshev Pafnuty Lvovich Chebyshev (Пафнутий Львович Чебышёв) (1821-1894) was a prominent Russian mathematician, professor of algebra, number theory, and […]
Updated: July 27, 2023 by Rebecca Bales | Leave a Comment
History of Computers and Computing, Mechanical calculators, 19th century, Otto Büttner Otto Büttner In 1883 Karl Otto Büttner, a mechanical engineer from […]
Updated: November 30, 2022 by Rebecca Bales | Leave a Comment
Arthur Burkhardt In 1876 Curt Dietzschold (1852-1922), a German mechanical engineer from Dresden was invited to come in Glashütte (a small […]
Updated: April 16, 2024 by History Computer Staff | 1 Comment on The Complete History of The Burroughs Adding Machine
3 Facts About The Burroughs Adding Machine The Burroughs Adding Machine can still be purchased today from sites like eBay, […]
Updated: July 26, 2023 by Rebecca Bales | Leave a Comment
Frank Baldwin The state of calculating machine design by 1870s can be seen in a note, appearing in a 1872 issue […]
While many of the greatest inventors of the 19th century are known only for what’s on their patent, the […]
Edmund Dana Barbour (Source: Harvard University Archives, HUGFP 125.32, Box 1, Folder Barbour) Edmund Barbour In 1872, a certain Edmund D. Barbour […]
Michael Bouchet Michael Bouchet (1827-1903) from Louisville, Kentucky, USA, was a holder of two USA patents for single-column adding devices (known […]
León Bollée After the first two machines, representing the class of direct-multiplying machines of Barbour and Verea, which remained relatively unknown, […]
Updated: July 26, 2023 by Heather | Leave a Comment
: The arithmetic machine of Johann Reichold The article was written with the expert help ofMr. Stephan Weiss,www.mechrech.info Until now, the information […]
The Conquering of the World — 19th century More than two centuries elapsed between the introduction of the first mechanical calculator […]
: The calculating machine of Giovanni Poleni The professor of astronomy, meteorology and mathematics and Marquis of the Holy Roman […]
: Jacob-Rodrigues Pereire In the 1751 issue of the earliest scientific journal in Europe—the french Le Journal des Sçavans, was […]
: The calculating machines of Charles Stanhope The British statesman and versatile scientist Charles Stanhope, Viscount Mahon (see biography of […]