Was Antikythera Mechanism A 2,100-Year-Old Computer?
An ancient device thought to predict astronomical events may have been a computer built 21 centuries ago. Why did ancient Greeks build this machine?
The Millionaire Machine
Cliff is back with an amazing device - The Millionaire Calculator
Revealing Layers of Complex Antique Machines
Take the most mundane item you can think of and San Francisco-based photographer Kevin Twomey will turn it into something fascinating. In this series, Twomey…
Calculating machine - Video
Peek inside this cool old mechanical calculator -- the Tiger! Made in Japan, it's an imitation of a European design c 1940.
The Astounding Curta Mechanical Calculator - YouTube
Apr 26, 2007 ... Witness the jaw-dropping ingenuity of this fascinating hand-held mechanical calculating machine.
Abacus
The abacus (plural abaci or abacuses), also called a counting frame, is a calculating tool that was in use centuries before the adoption of the written modern numeral system and is still widely used b...
Abacus - Wikipedia
Adding machine
An adding machine was a class of mechanical calculator, usually specialized for bookkeeping calculations.In the United States, the earliest adding machines were usually built to read in dollars and ce...
Adding machine - Wikipedia
Analytical engine
The Analytical Engine was a proposed mechanical general-purpose computer designed by English mathematician Charles Babbage.It was first described in 1837 as the successor to Babbage's Difference engin...
Analytical engine - Wikipedia
Antikythera mechanism
The Antikythera mechanism (/ˌæntɨkɨˈθɪərə/ ANT-i-ki-THEER-ə or /ˌæntɨˈkɪθərə/ ANT-i-KITH-ə-rə) is an ancient analog computer designed to predict astronomical positions and eclipses for calendrical and...
Antikythera mechanism - Wikipedia
Arithmometer
The Arithmometer or Arithmomètre was the first digital mechanical calculator strong enough and reliable enough to be used daily in an office environment. This calculator could add and subtract two nu...
Arithmometer - Wikipedia
Astrolabe
An astrolabe (Greek: ἀστρολάβος astrolabos, "star-taker") is an elaborate inclinometer, historically used by astronomers, navigators, and astrologers. Its many uses include locating and predicting...
Astrolabe - Wikipedia
Difference engine
A difference engine is an automatic mechanical calculator designed to tabulate polynomial functions. The name derives from the method of divided differences, a way to interpolate or tabulate functions...
Difference engine - Wikipedia
Napier's bones
Napier's bones is a manually-operated calculating device created by John Napier of Merchiston for calculation of products and quotients of numbers. The method was based on Arab mathematics and the lat...
Napier's bones - Wikipedia
Pascal's calculator
Blaise Pascal along with Wilhelm Schickard was one of two inventors of the mechanical calculator in the early 17th century. Pascal designed the machine in 1642. He was spurred to it when participatin...
Pascal's calculator - Wikipedia
Slide rule
The slide rule, also known colloquially in the United States as a slipstick, is a mechanical analog computer. The slide rule is used primarily for multiplication and division, and also for functions s...
Slide rule - Wikipedia
Tabulating machine
The tabulating machine was an electromechanical machine designed to assist in summarizing information and, later, accounting. Invented by Herman Hollerith, the machine was developed to help process da...
Tabulating machine - Wikipedia
Comptometer
The comptometer was the first commercially successful key-driven mechanical calculator, patented in the USA by Dorr E. Felt in 1887.A key-driven calculator is extremely fast because each key adds or s...
Comptometer - Wikipedia
Bygrave slide rule
The Bygrave slide rule is a slide rule named for its inventor, Captain L. G. Bygrave of the RAF. It was used in celestial navigation, primarily in aviation. Officially, it was called the A. M. L. Pos...
Bygrave slide rule - Wikipedia
Accounting machine
An accounting machine, or bookkeeping machine or recording-adder, was generally a calculator and printer combination tailored for a specific commercial activity such as billing, payroll, or ledger. A...
Organum Mathematicum
The Organum Mathematicum was an information device or teaching machine that was invented by the Jesuit polymath and scholar Athanasius Kircher in the middle of the 17th century. The device was intend...
Organum Mathematicum - Wikipedia
Antikythera wreck
The Antikythera wreck lays off the Greek island of Antikythera on the edge of the Aegean Sea, northwest of CreteThe Antikythera wreck is a shipwreck dating from the 2nd quarter of the 1st century BC. ...
Antikythera wreck - Wikipedia
Genaille–Lucas rulers
Genaille–Lucas rulers (also known as Genaille's rods) is an arithmetic tool invented by Henri Genaille, a French railway engineer, in 1891. The device is a variant of Napier's bones. By representing...
Genaille–Lucas rulers - Wikipedia
Burroughs Corporation
The Burroughs Corporation was a major American manufacturer of business equipment. The company was founded in 1886 as the American Arithmometer Company, and after the 1986 merger with Sperry Univac wa...
Burroughs Corporation - Wikipedia
Olivetti
Olivetti S.p.A. is an Italian manufacturer of typewriters, computers, tablets, smartphones, printers and other such business products as calculators and fax machines. Headquartered in Ivrea, province ...
Olivetti - Wikipedia
Analytical Engine
The Analytical Engine was a proposed mechanical general-purpose computer designed by English mathematician Charles Babbage.It was first described in 1837 as the successor to Babbage's difference engin...
Analytical Engine - Wikipedia
Standard Adding Machine Company
Standard Adding Machine Company was founded in the early 1900s and was the first company to release a 10-key adding machine. The machine was a breakthrough for its time because it dramatically moderni...