Updated: July 28, 2023 by Heather | Leave a Comment
about Tabulating Machines Some significant facts about Tabulating machines are as follows. Tabulating Machine: History The Tabulating Machine was made for […]
Optical character recognition, often abbreviated as OCR, plays an enormous part in the text recognition software many of us rely […]
: Universal Serial Bus Specs Versions Maximum Data Transfer Speed Connector Types Maximum Cable Length Maximum Charging Power USB 1 12MBps Type A & Type B 3m 500mA USB-2 480Mpbs Supports all […]
about Audion Vacuum Tube Audion Vacuum Tube: History Gas flames had been electrically conductive since about the middle of the […]
Updated: April 16, 2024 by History Computer Staff | Leave a Comment
: Mechanical Calculators: History Up to the end of the 17th century, among the most prominent polymaths and encyclopedic scientists of […]
Wilhelm Schickard Wilhelm Schickard (see biography of Schickard) was born in the small south German town Herrenberg (near Tübingen) and […]
The Abaque Rhabdologique of Claude Perrault The Parisian doctor of medicine Claude Perrault (see biography of Claude Perrault) was a remarkable […]
Who Was Gottfried Wilhelm Leibniz? Gottfried Wilhelm Leibniz was a well-known German mathematician, physicist, and philosopher. Noted for his independent […]
Updated: July 21, 2023 by Heather | Leave a Comment
Pascaline Calculator History Blaise Pascal invented the Pascaline Calculator. Pascal was considered a child prodigy and was gifted in a […]
: The Sketch of Leonardo da Vinci (Created with the expert advice of Mr. Silvio Hénin, Milan, Italy) Leonardo da Vinci (see […]
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 […]
: The Calculating Machines of Sir Samuel Morland The polymath Samuel Morland (see biography of Samuel Morland), was a notable English […]
Updated: November 24, 2024 by Rebecca Bales | Leave a Comment
Charles Wales Charles Wales, a genius of mechanical motion and a native of Maryland, who lived in the early 1900s […]
: Who was Ryoichi Yazu? Ryoichi Yazu was a Japanese inventor. He is well known for his invention of Japan’s first […]
Victor Adding Machine Co. was established in Chicago in 1918, with the chief designer (and one of the 3 […]
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
William and Hubert Hopkins machines The Hopkins brothers, William and Hubert, from Saint Louis, are the holders of more than […]
Updated: December 19, 2024 by Rebecca Bales | Leave a Comment
Dalton Adding Machine James Lewis Dalton (1866-1926) (see biography of James Lewis Dalton) was a successful businessman and amateur mechanic […]
4 Facts About Curta Calculator Some major facts about the Curta calculator are as follows: Curta Calculator History Curt Herzstark’s Curta is a […]
Updated: December 12, 2024 by Rebecca Bales | Leave a Comment
Gauss of Christel Hamann The German engineer Christel Hamann (1870-1948) (biography of Hamann) is an outstanding figure in the world […]
Updated: December 14, 2024 by Rebecca Bales | Leave a Comment
Ensign Electric Calculating Machine Ensign Electric Calculating Machine is a highly developed, electrically driven adding and subtracting machine, particularly suited […]
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. […]
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 […]
Updated: November 30, 2024 by Rebecca Bales | Leave a Comment
Mathias Bäuerle In 1903, the German clock manufacturer from Schwarzwäld — Bäuerle Uhrenfabrik (Clock Factory), Sankt Georgen, launched his adding […]
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 […]
: 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 […]
Izrael Abraham Staffel The Polish Jew Izrael Abraham Staffel was born in 1814 to an impoverished family in Warsaw, Poland, […]
Updated: December 7, 2024 by Rebecca Bales | Leave a Comment
Joseph Turck Joseph Abraham Valentine Turck (1870-1956) was a famous figure in the world of mechanical calculators. He is the […]
: 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, […]
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: Victor Schilt The calculating machine of the Swiss clockmaker Victor (or Viktor) Schilt (1822-1880) was exhibited in 1851 at […]
Updated: December 16, 2024 by Heather | Leave a Comment
: Eduard Selling In 1886 the professor of mathematics at the University of Würzburg, Germany, Eduard Selling (1834-1920) (see biography […]
Saxonia Calculating Machine History Saxonia was among the first mechanical calculators invented by three Mechanics working in the factory of […]
Du Bois D. Parmelee In 1850 Du Bois (Dubois) D. Parmelee from New Paltz, state of New York, received the […]
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 Wilhelm Küttner Friedrich Wilhelm Küttner (1841-1920), a German businessman from Burgk bei Potschappel (near Dresden), chose to spend […]
Updated: November 28, 2024 by History Computer Staff | Leave a Comment
About the Tate-Layton Machine Tate-Layton Machine History The first English stepped drum machine (Thomas de Colmar-type arithmometer) was devised in […]
History of Computers and Computing, Mechanical calculators, 19th century, Maurel and Jayet The arithmaurel of Maurel and Jayet In 1841 in […]
Who Was Willgodt Odhner? Willgodt Odhner was a Swedish inventor and engineer. He invented a mechanical calculator and founded a […]
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 […]
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 […]
: 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 1830s 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 […]
