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Updated: April 19, 2024 by History Computer Staff | Leave a Comment
Key Points History of Computers and Computing, Calculating tools, Gadgets, Eduard Hammenstede Eduard Hammenstede On March 31st, 1882 Eduard Hammenstede of Cologne, Germany, […]
Updated: July 24, 2023 by Austin S. | Leave a Comment
By the mid-1800s, inventors had been devising mechanical calculators for over 200 years. If you don’t consider the abacus, […]
Who Was William S. Gubelmann? William Samuel Gubelmann was an American businessman and inventor. Mr. Gubelmann was born in mid-1865 […]
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 […]
George Phineas Gordon: Early Years George Phineas Gordon was born on April 21st, 1810 in Salem, New Hampshire. He went […]
Jean-Paul Garnier was a French mechanic and watchmaker. He won several awards for his watchmaking, with inventions including a […]
Carlo Fossa Mancini was a true master in the art of hydraulic engineering. His incredible talent and innovative thinking […]
Frederick Lincoln Fuller was an American inventor and entrepreneur who made significant contributions to the development of the cash […]
George Dudley was an American inventor who was known for inventing adding and printing machines. These revolutionary machines could […]
Born in the 19th century in a part of the Russian Empire that is now part of Lithuania, Herschell […]
Peter C. Forrester was an extremely prolific inventor who was born in Canada but lived in the U.S. throughout […]
Juri Diakov Around 1874, the Russian military engineer from S. Petersburg, captain Juri I. Diakov (Юрiй И. Дьяковъ), devised a […]
Today, if we want to add some figures, we’re more likely to use the calculator app on our phones […]
Alexander Davies was a former clerk and accountant who invented a slide bar adder. The device worked by using […]
Charles Corliss In 1868, Charles Corliss, a farmer and landowner from Haverhill, Massachusetts, received two patents (one of the patents […]
Born in 1615, Charles Cotterell was an English courtier who wore many hats throughout his life. He worked as […]
In the 1800s, machines called single adders were used. Marshall Cram made one such machine, although it could only […]
In 1677, French Jesuit mathematician Claude Dechales published L’ art de naviger demontré par principes & confirmé par plusiers […]
Updated: July 24, 2023 by Lisha Pace | Leave a Comment
: About Hugo Cook The Indiana born engineer and instrument maker Hugo Cook (1856-1944) was a holder of many US patents […]
Updated: April 19, 2024 by Rebecca Bales | Leave a Comment
History of Computers and Computing, Calculating tools, Gadgets, Cathrinus Nikolay Arbo Collett Cathrinus Nikolay Arbo Collett In late 1860s, Cathrinus Nikolay Arbo […]
Samuel Comfort (1837-1923) of Morrisville, Pennsylvania, (see biography of Samuel Comfort) attained considerable distinction as an inventor of improvements […]
: Born in 1847 in Springfield, Massachusetts, Gilbert Chapin received his education in common schools and even worked on a […]
Updated: July 24, 2023 by Abby | Leave a Comment
The first mechanical cash register was patented in 1879 by brothers James and John Ritty. While on a steamboat […]
David Carroll was an American inventor who invented an adding machine. This machine was made from wood and metal […]