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Updated: December 6, 2022 by Lisha Pace | Leave a Comment
Who was Alexis Petetin? Alexis Petetin was a notable inventor in France in the 1800s. He is best known for attaining […]
Updated: July 25, 2023 by Lisha Pace | Leave a Comment
Nystrom’s Calculator In late 1840s the young swedish immigrant , John William Nystrom, who lived in Philadelphia, invented a calculating device, […]
Who Was William Macnider? In 1884, John Macnider of Greensborough, Georgia, applied for a patent for a keyboard adding machine. Unfortunately, […]
Who was James Alvan Macualey? Wheeling, West Virginia, was the place of James Alvan Macauley’s birth on June 19, 1872. James […]
Updated: July 25, 2023 by Abby | Leave a Comment
Max Mayer In 1881 the German inventor Max Mayer from Munich devised an adding machine, which was patented in 1884 (German […]
Who Was Amos Mendenhall? Amos Mendenhall was an American inventor that was recognized for attaining five US patents. He left a […]
Updated: April 16, 2024 by History Computer Staff | Leave a Comment
History of Computers and Computing, Calculating tools, Gadgets, Francis Marston The Apparatus for Making Calculations of Francis Marston In 1842 a certain […]
: Clarence was the inventor of the Locke Adder, a row adder made of stamped tin, paper and cloth. Though not […]
Updated: April 19, 2024 by Abby | Leave a Comment
Ernest-Narcisse Lobbé In early 1850s Ernest-Narcisse Lobbé, a Parisian watchmaker and mechanic, created one of the first keyboard calculating machines in […]
Who was Peter Lindholm? Peter Trulson Lindholm was born on April 4th, 1850, in Ysone, Blekinge, Sweden. Lindholm emigrated to the […]
Who Was Melvin Lovell? Born in Pennsylvania in August 1844, Melvin Lovell was a successful businessman and woodenware manufacturer who also […]
: Gutavus Linderoos is noteworthy for holding a patent for an early adding machine which is housed at the National […]
Updated: July 25, 2023 by Austin S. | Leave a Comment
Judah Levin’s Adding Machine History Judah Levin created a steel-framed adding machine. Yehuda Leib Levin was born on March 26, 1863. He […]
: In 1858, Leonard N. Nutz invented the fourth patented keyboard adder in the US–a single-column adding machine. Up through 1880, […]
Born in the city of Dresden, Sachsen, Deutschland on September 14, 1845, Friedrich Oskar Leuner was born to Carl Moritz […]
Otto Lilienthal invented the Calculating Device, which he patented in 1888. Who Was Otto Lilienthal? No mistake, yet another celebrity should be […]
Unfortunately, we don’t know a lot about Niels Larsen apart from his patents and inventions. From what we do know, […]
Updated: July 24, 2023 by Abby | Leave a Comment
Charles Labofish : Charles Labofish emigrated to the US from the Russian Empire in 1888, and held 15 US, Canada and […]
History of Computers and Computing, Calculating tools, Gadgets, Georges Lafond Georges Lafond In 1899 french engineer Georges Lafond from Paris patented (German […]
Updated: November 17, 2022 by Austin S. | Leave a Comment
Who is William Lang? William Lang was a leading noise control engineer at IBM and a fellow of the American Association […]
Updated: July 24, 2023 by Austin S. | Leave a Comment
Who Was Samuel Kelso? Samuel Kelso was an inventor from Scotland who immigrated to Canada and later to the United States. […]
Early computers are amongst some of the most fascinating inventions around, and they were instrumental in changing the way that […]
Updated: July 24, 2023 by Lisha Pace | Leave a Comment
Lewis Hosea and William Beardsley On 3 March, 1891, Lewis Hosea (see biography of Lewis Hosea), a lawyer and amateur mechanic, […]
History of Computers and Computing, Calculating tools, Gadgets, Henry House Henry Alonzo House Key Facts: Henry House was an extremely prolific American inventor, […]
While the 20th century saw inventors and mathematicians get closer and closer to the modern calculators and computers we know […]
Jehu Hatfield was an inventor during the 19th century. While he was working with spittoons, pottery, and Lucifer matches, his […]
History of Computers and Computing, Calculating tools, Gadgets, De Kerniea James Thomas Hiett : In 1897, De Kerniea James Thomas Hiett […]
History of Computers and Computing, Calculating tools, Gadgets, Calvin Holman : A patent model of Calvin Holman’s adding machine is housed […]
In 1877, Milton Hinkle invented a simple adding device that resembles and functions similarly to adding devices invented by Jabez […]
History of Computers and Computing, Calculating tools, Gadgets, Christian Hergenroeder : Christian Hergenroeder was the inventor of an adding machine, the […]
History of Computers and Computing, Calculating tools, Gadgets, Ferdinand Hebentanz Ferdinand Hebentanz On 23 April 1873, Ferdinand Hebentanz, a watchmaker from Budapest, […]
Updated: April 19, 2024 by History Computer Staff | Leave a Comment
History of Computers and Computing, Calculating tools, Gadgets, Eduard Hammenstede Eduard Hammenstede On March 31st, 1882 Eduard Hammenstede of Cologne, Germany, received […]
By the mid-1800s, inventors had been devising mechanical calculators for over 200 years. If you don’t consider the abacus, which, […]
George Phineas Gordon: Early Years George Phineas Gordon was born on April 21st, 1810 in Salem, New Hampshire. He went to […]
Updated: July 24, 2023 by Rebecca Bales | Leave a Comment
Groesbeck’s Adding Machine John Groesbeck (1834-1884), was a consulting accountant, born in New York, who lived in Philadelphia and was many […]
Who Was William S. Gubelmann? William Samuel Gubelmann was an American businessman and inventor. Mr. Gubelmann was born in mid-1865 and […]
Carlo Fossa Mancini was a true master in the art of hydraulic engineering. His incredible talent and innovative thinking led […]
Updated: July 24, 2023 by Rebecca Bales | 1 Comment on Golden Gem Adding Machine Explained: Everything You Need to Know
The Golden Gem Adding Machine was invented by Russian Jew, Abraham Isaac Gancher. Gancher was a former leather salesman who […]
Jean-Paul Garnier was a French mechanic and watchmaker. He won several awards for his watchmaking, with inventions including a free […]
Frederick Lincoln Fuller was an innovative inventor and entrepreneur in the 19th century. Frederick Lincoln Fuller was an American inventor […]
George Fowler was an American inventor who is famous for creating a slide bar adder, known as Fowler’s Adder. He […]
Born in the 19th century in a part of the Russian Empire that is now part of Lithuania, Herschell Filipowski […]
Peter C. Forrester was an extremely prolific inventor who was born in Canada but lived in the U.S. throughout his […]
Juri Diakov Around 1874, the Russian military engineer from S. Petersburg, captain Juri I. Diakov (Юрiй И. Дьяковъ), devised a simple […]
George Dudley was an American inventor who was known for inventing adding and printing machines. These revolutionary machines could be […]
Today, if we want to add some figures, we’re more likely to use the calculator app on our phones than […]
In 1677, French Jesuit mathematician Claude Dechales published L’ art de naviger demontré par principes & confirmé par plusiers observations […]
Alexander Davies was a former clerk and accountant who invented a slide bar adder. The device worked by using a […]
Charles Corliss In 1868, Charles Corliss, a farmer and landowner from Haverhill, Massachusetts, received two patents (one of the patents is […]
Born in 1615, Charles Cotterell was an English courtier who wore many hats throughout his life. He worked as a […]