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.
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
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
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
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?
Frank Stephen Baldwin
Frank Stephen Baldwin (April 10, 1838 – April 8, 1925) was an American who invented a pinwheel calculator in 1874. He started the design of a new machine in 1905 and was able to finalize its design w...
Frank Stephen Baldwin - Wikipedia
Roman abacus
The Ancient Romans developed the Roman hand abacus, a portable, but less capable, base-10 version of the previous Babylonian abacus. It was the first portable calculating device for engineers, merchan...
Roman abacus - 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...
The Addiator is a mechanical add/subtract calculator, once made by Addiator Gesellschaft, Berlin. Variants of it were manufactured from 1920 until 1982. It is composed of sheet-metal sliders inside a ...
Addiator - Wikipedia
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
Jetons were token or coin-like medals produced across Europe from the 13th through the 17th centuries. They were produced as counters for use in calculation on a lined board similar to an abacus. They...
Jeton - Wikipedia
Stepped Reckoner
The Step Reckoner (or Stepped Reckoner) was a digital mechanical calculator invented by German mathematician Gottfried Wilhelm Leibniz around 1672 and completed in 1694. The name comes from the trans...
Stepped Reckoner - 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