Pascaline Calculator

Pascaline Calculator Explained — Everything You Need To Know

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Facts About the Pascaline Calculator  This was a calculating device invented in 1642. The calculator went through 50 prototypes.  The calculator was publicly presented in 1645. Blaise Pascal invented the machine to help his father complete tax computations more efficiently. Pascal was only 18 when he invented the calculator. Pascaline Calculator History Blaise Pascal invented […]

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Victor Adding Machine – History of the Victor Adding Machine Co.

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Victor Adding Machine – History of the Victor Adding Machine Co. Oliver David Johantgen (8 July 1875, Charleston, Indiana – 11 April 1932 in Evanston, Cook, Illinois) Victor Adding Machine Victor Adding Machine Co. was established in Chicago in 1918, with the chief designer (and one of the 3 owners) Oliver David Johantgen (1875-1932), an […]

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Dalton Adding Machine – Complete History of the Dalton Adding Machine

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Dalton Adding Machine James Lewis Dalton (1866-1926) (see biography of James Lewis Dalton) was a successful businessman and amateur mechanic from Poplar Bluff, Butler county, Mo. He was the owner of the largest department store in the Mid-West, member of Missouri legislature and District Deputy Grand Master of the Masonic Lodge of State of Missouri. […]

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Curta Calculator

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4 Facts About Curta Calculator Some major facts about the Curta calculator are as follows Due to its design and mode of operation were dubbed the “pepper grinder” or “peppermill.” Its apparent similarity to a particular hand grenade gained it the title “math grenade.”.  Before getting surpassed by the electronic calculators in the 1970s, Curtas […]

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Caroline Winter's Adding Machine

Winter’s Keyboard Adder — Everything You Need to Know

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3 Facts about Winter’s Keyboard Adder  Winter’s Keyboard Adder is the first, and so far the only, mechanical calculator that was created and patented by a woman. Winter’s machine survived to modern times in the current form in which it was invented. Other original calculating machines did not continue as patented. Caroline Winter’s device was […]

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Millionaire Calculator Machine Explained – Everything You Need To Know

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Long before the hand-held calculators, there was the millionaire calculator machine—a large, clunky, and expensive mechanical machine that performed direct multiplications with only a single turn of a crank. Created in 1893 by Swiss engineer Otto Steiger and patented and marketed by Zurich’s Hans Egli company in 1895, the Millionaire Calculator Machine was the first […]

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Victor Schilt’s keyboard adder

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History of Computers and Computing, Mechanical calculators, 18th century, Victor Schilt’s keyboard adder Victor Schilt The calculating machine of the swiss clockmaker Victor (or Viktor) Schilt (1822-1880) was exhibited in 1851 at the Great exposition of the works of industry of all nations in Crystal Palace, London, and received an honorable mention and a bronze […]

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Saxonia calculating machine

Saxonia Calculating Machine Explained: Everything You Need to Know

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3 Facts About the Saxonia Calculating Machine Over 12,000 Saxonia calculating machines were manufactured and sold from 1895 to 1914. The Saxonia was a device used in addition and multiplication of numbers. It had a movable accumulator enabling the calculator to perform complex multiplication and divisions effectively. The Saxonia calculator was later developed with a […]

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Du Bois D. Parmelee’s key adder

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History of Computers and Computing, Mechanical calculators, 18th century, Du Bois D. Parmelee’s key adder Du Bois D. Parmelee In 1850 Du Bois (Dubois) D. Parmelee from New Paltz, state of New York, received the US patent №7074, for a single column key-driven adding machine. This is the fourth (known to us) key-driven adding machine […]

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old time arithmometer

Tate-Layton Machine Explained: Everything You Need To Know

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3 Facts About the Tate-Layton Machine The Tate-Layton machine was largely based on the work of Thomas de Colmar and other 19th century arithmometers. Charles and Edwin Layton, founders of C. & E. Layton, were originally publishers. The design was largely unchanged from the 1883 version to the end of production in 1910. Tate-Layton Machine […]

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keyboard adder model

Tito Gonnella’s Adding Machines Explained – Everything You Need To Know

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Four Facts About Tito Gonnella’s Adding Machines Tito Gonnella invented a dial adder and keyboard adding machine. His keyboard adder made some improvements on the design and is known as one of the seventh keyboard-driven machines. He received a bronze medal at the 1851 London International Exhibition for his keyboard adding machine. Tito Gonnella is […]

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Comptometer

Comptometer Explained – Everything You Need To Know

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Four Facts About Comptometer The Comptometer is known to be the first key-driven adding and calculating machine. Comptometers were in use until the 1990s when developments in computer technology rendered them obsolete. In 1889, the Comptometer’s inventor added a printing mechanism and received a patent for the Comptograph, a prototype for modern-day adding machines. Margarete […]

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Arithmometer Explained – Everything You Need To Know

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4 Facts about the Arithmometer of Thomas de Colmar Thomas de Colmar’s arithmometer was the first commercially successful calculating machine. The inventor, Thomas de Colmar, was a contemporary of Charles Babbage, who created more complex and less commercially successful mechanical calculators. The arithmometer was capable of multiplication, three-digit inputs, and six-digit results. Also known as […]

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The Complete History of The Burroughs Adding Machine

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3 Facts About The Burroughs Adding Machine The Burroughs Adding Machine can still be purchased today from sites like Ebay, usually for between $70 and $300, or more depending on the condition of the machine. At one point the Burroughs Adding Machine Company had around ninety percent of the calculator market. The company made a […]

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machine of Hillerin

The Machine of Hillerin Explained – Everything You Need To Know

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Way back in 1730, the French Academy of Sciences — one of the leading authorities on scientific and mathematical inventions, theories, and the like — granted certification to a trio of machines designed by a man named Hillerin de Boistissandeau. The first was a single-tooth carry mechanism incapable of working properly if a carry needed […]

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Caze

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History of Computers and Computing, Mechanical calculators, 18th century, Caze The New Arithmetical Machine of Caze The adding device of Caze, created sometime around 1696, could be considered as one of the most simple calculating devices, which can be invented, something like a version of the abacus or a simplified version of the Abaque Rhabdologique […]

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First chat program of Murray Turoff

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History of Computers and Computing, Internet, Birth, First chat program of Murray Turoff First chat program of Murray Turoff In 1971 the Ph.D. in Physics Murray Turoff (born in San Francisco, February 13, 1936), while working in the U.S. Office of Emergency Preparedness (a federally coordinated system that augments the Nation’s medical response capability), designed […]

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The First Computer Virus of Bob Thomas Explained: Everything You Need to Know

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4 Facts about the First Computer Virus of Bob Thomas The First Computer Virus was written in-house. It wasn’t deployed with any malicious intent. It’s more of a security test than a virus. Its original name is Creeper. First Computer Virus History The First Computer Virus, Creeper, was named after a Scooby-Doo cartoon show character. Creeper […]

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Douglas Engelbart’s NLS

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History of Computers and Computing, Internet, Birth, Douglas Engelbart’s NLS The NLS system of Douglas Engelbart The name of the prominent American inventor and computer pioneer Douglas Carl Engelbart (biography of Douglas Engelbart) has already been mentioned several times in this site (see the first computer mouse). Here we will mention only his system NLS […]

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Chess machine demonstration

The Complete History of Leonardo Torres’s Chess Machine — Everything You Need To Know

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3 Facts about Leonardo Torres’s Chess Machine The machine could, in a totally unassisted and automated fashion, deliver mate with King and Rook against King. Although referred to as a chess player, Leonardo’s El Ajedrecista was not designed to play the whole chess game. Instead, the automaton was made to play a part of the […]

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Shakey the Robot Explained: Everything You Need to Know

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Artificial Intelligence has come a long way and achieved significant milestones over the years. The history of AI and machine learning cannot be discussed without mentioning Shakey the robot. Created in the late 1960s, Shakey was the first mobile robot with the ability to perceive and reason about its surroundings. Its developers were a group […]

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Steam Man

Steam Man of Zadoc Dederick Explained — Everything You Need To Know

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6 Facts about the Steam Man The Steam Man of Zadoc Dederick is considered the first American robot. The machine was so inspirational it generated many more walking machines, steam or otherwise, and also fictional stories, like the famous dime novel The Steam Man of the Prairies by Edward S. Ellis. Zadoc Dederick and Isaac […]

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A digital reconstruction of the self-propelled cart of Leonardo. Attribution not found

The History of Leonardo da Vinci’s Automata

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Four Facts About Leonardo da Vinci’s Automata Leonardo da Vinci’s self-propelled cart is considered the world’s first robotic vehicle. While many of his designs were revolutionary, it’s unclear if any of them were actually created. Leonardo da Vinci’s robotic knight was designed to stand, sit, cross its arms, turn its head, and lift its visor. […]

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The Electric Dog demonstration

The Electric Dog of Hammond and Miessner Explained – Everything You Need To Know

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3 Facts About the Electric Dog of Hammond and Miessner  Seleno, the Electric Dog, is considered the ancestor of self-directing robots. The Electric Dog had the ability to “follow” its master around a room. The Electric Dog demonstrated what selenium was, how it worked, and how light affected its properties. Electric Dog of Hammond and […]

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