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
Sector (instrument)
The sector, also known as a proportional compass or military compass, was a major calculating instrument in use from the end of the sixteenth century until the nineteenth century. It is an instrument ...
Sector (instrument) - 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?
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
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
Soroban
The soroban (算盤, そろばん, counting tray) is an abacus developed in Japan. It is derived from the Chinese suanpan, imported to Japan in the 14th century. Like the suanpan, the soroban is still used to...
Soroban - Wikipedia
Odhner Arithmometer
The Odhner Arithmometer was a very successful pinwheel calculator invented in Russia in 1873 by W. T. Odhner, a Swedish immigrant. Its industrial production officially started in 1890 in Odhner's Sain...
Odhner Arithmometer - 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
Thomas Fowler (inventor)
Thomas Fowler (born 1777 in Great Torrington, Devon, England – died March 31, 1843) was an English inventor whose most notable invention was the thermosiphon which formed the basis of early hot ...
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
Tally counter
A tally counter is a mechanical, electronic, or software device used to incrementally count something, typically fleeting. One of the most common things tally counters are used for is counting people,...
Tally counter - Wikipedia