Brown

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History of Computers and Computing, Calculating tools, Gadgets, Brown George Brown’s Rotula Arithmetica George Brown (1650-1730) is a Scottish arithmetician and minister, known for the invention of an arithmetical instrument, called Rotula Arithmetica—a device for simple addition, subtraction, multiplication, and division. Brown attended Aberdeen’s Kings College, matriculating in 1664 and graduating in 1668. Then he […]

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Willard Legrand Bundy

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History of Computers and Computing, Calculating tools, Gadgets, Willard Legrand Bundy Willard Legrand Bundy In the end of 1880s Willard Legrand Bundy (1845-1907), an owner of jewelry store in Auburn, New York, (see biography of Willard Legrand Bundy), devised the first electric-cash register in the world. The device was patented in 1890 (US patent Nr. […]

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Viktor Bunyakovsky – Complete Biography, History, and Inventions

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Who was Viktor Bunyakovsky? Viktor Bunyakovsky was a famous Russian mathematician. He was also known as a member and vice president of the Petersburg academy of sciences. The mathematician is acknowledged for his significant contributions to probability and number theories. And in 1859, He was credited for his early discovery of the Cauchy-Schwarz inequality.  Bunyakovsky […]

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The quick and sure reckoner of William Briggs.

William Briggs – Complete Biography, History, and Inventions

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When we think of the arithmetical calculator, we think of a small, rectangular device that can fit in a person’s hand. However, this is our modern-day perspective speaking. As it turns out, this standard design is only a recent innovation — in the early days of the arithmetical calculator, an inventor could try anything they […]

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Frank Bone

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Frank Bone On 26 October, 1886, Frank A. Bone of Lebanon, Ohio, county surveyor of Warren County, Ohio, patented a column keyboard adder (US patent 351487). Let’s examine the adding machine of Bone, using the patent drawing (see below the drawing). The object of the invention is to provide a new and improved machine for […]

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Hugues Beaucourt

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History of Computers and Computing, Calculating tools, Gadgets, Hugues Beaucourt Hugues and Edmond Beaucourt On 18 February, 1881, Hugues Beaucourt (1845-1919), a son of the famous organ-builder from Lyon—Hippolyte-César Beaucourt (1822-1888), patented (French patent 141208) appareil pour calculer, an interesting adding device with rotatable (similar to telephone number dial) input mechanism. Hugues Beaucourt succeeded his […]

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Jan Józef Baranowski

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History of Computers and Computing, Calculating tools, Gadgets, Jan Józef Baranowski Jan Józef Baranowski The Polish economist, financier, linguist, engineer and inventor Jan Józef Baranowski (see the biography of Baranowski) was the author of many technical inventions, 17 of which have been patented in France. Interestingly, at least 4 of them are for calculating devices: […]

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Policarpo de Balzola

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History of Computers and Computing, Calculating tools, Gadgets, Policarpo de Balzola The Teclado Aritmético of Policarpo de Balzola In the middle of 1840s the Basque mathematician and inventor Policarpo de Balzola (1813-1879), from Irún (Guipúzcoa), Spain, (see biography of Policarpo de Balzola) invented his machine Teclado Aritmético (Arithmetic Keyboard)—a calculating machine that had the appearance […]

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António Júlio de Azevedo Coutinho

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History of Computers and Computing, Calculating tools, Gadgets, António Júlio de Azevedo Coutinho António Júlio de Azevedo Coutinho In the early 1880s, the young Portugal António Júlio Rodrigues de Azevedo Coutinho (1860-1918) devised an interesting key adding device, which he patented in Brasil in 1882, and later in Germany (patent DE30421, 19 August 1884). António […]

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Friedrich Arzberger

Friedrich Arzberger — Complete Biography, History, and Inventions

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Who Was Friedrich Arzberger? Friedrich Arzberger was an Austrian engineer and professor. While he wrote several publications for his work on imaginative gravity escapement and served for decades as a professor in mechanical technology, he’s most known for his invention of an adding machine with columns. In 186os, Friedrich Arzberger constructed one of the early […]

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John Ballou Newbrough

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History of Computers and Computing, Calculating tools, Gadgets, John Ballou Newbrough John Ballou’s Adding Machine On March 13, 1860, a certain John Ballou of Cincinnati, Ohio, took out a US patent №27418, for a calculator. It seems the device never went into production and only the patent model survived to the present, kept in National […]

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James Appleby – Complete Biography, History, and Inventions

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Who was James Appleby? James Appleby was among the early inventors who developed the Calculating incredible machine to aid in money calculation. He borrowed the idea of the Abacus and developed his reliable but straightforward device.  Early Life James Ramsey Cuthbert Appleby was born on 2 January 1807 in Shaftesbury, Dorset. He was a child […]

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Vladimir Lukianov

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Hydraulic Integrator of Vladimir Lukianov Vladimir Sergeevich Lukianov (Владимир Сергеевич Лукьянов) was born in Moscow, on 17 March, 1902, in the family of an insurance agent. In 1919 he graduated from a Moscow classical high school and entered the building department of the Moscow State University of Railway Engineering. He graduated in 1925 and was […]

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Percy Ludgate

Percy Ludgate – Complete Biography, History, and Inventions

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Who was Percy Ludgate? Percy Ludgate, born on August 2, 1883, was an Irish amateur scientist popular for designing the second analytical machine in history. The analytical machine is now referred to as the general-purpose Turing-complete computer. Percy died on October 16, 1922, aged 39. Percy Ludgate, during his lifetime, was an interesting figure in […]

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Martin Wiberg – Biography, History and Inventions

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Martin Wiberg The Swede Martin Wiberg (September 4, 1826-December 29, 1905) was born in Viby, Scania. In 1845 he enrolled at Lund University to study medicine, but for financial reasons turned to the study of science and became a Doctor of Philosophy in 1850. He was very interested in printing business and wished to develop […]

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Alexander John Thompson – Biography, History and Inventions

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Alexander John Thompson – Biography, History and Inventions Alexander John Thompson Dr. Alexander John Thompson was a British statistician, the author of the last great table of logarithms, published in the period 1934-1952. His table, the Logarithmetica britannica, gives the logarithms of all numbers from 1 to 100000 to 20 places and supersedes all previous […]

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Louis Couffignal – Biography, History and Inventions

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Louis Couffignal Louis Pierre Couffignal (1902-1966), a French Mathematician and Cybernetics pioneer, was born in Monflanquin, Fâcheries, on 16 March 1902, in a humble family: his father Guillaume Couffignal (born 1858), was a chief cantonnier, his mother, Marie Deroux-Couffignal (born 1871), was a tailor. After attending a primary school at Monflanquin, in 1913 Louis enrolled […]

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The History of Babbage

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Some time in 1821, the young english mathematician Charles Babbage (biography), checking calculations for improving tables for a navigational book, and disappointed by numerous errors in these calculations, shared with a friend—”I wish to God these calculations had been executed by steam!”. It is quite possible, remarked his friend. It was during the course of […]

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