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Pascaline, the arithmetic machine
In the 17th century (between 1642 and 1644) , the French mathematician-philosopher Blaise Pascal invented the Pascaline, the first calculator to be actually used. That arithmetic machine, Pascaline, could only calculate addition and subtraction operations. -
Tne Leibniz Drum
The Leibniz Drum, know as " The Leibniz Wheel", is a four-function calculator that was invented in 1671 by the German mathematician Gottfried Wilhelm Leibniz. -
The Difference Engine
The Difference Engine was an automatic mechanical calculator, created by Charles Babbage in 1803, that could calculate complex arithmetical operations, like polynomial equations. -
Jacquard Loom
The Jacquard Loom, a machine that was actually a fabric loom and used storage and programming, was created by Joseph Marie Jacquard in 1804. -
Analytical Engine
The Analytical Engine, one of the most successful achievements of Charles Babbage created in 1837, was a machine which had a lot of similarities with the modern computers. -
Tha Tabulating Machine
The elecromechanical tabulating machine was invented by tha American Herman Hollerith in 1890. This machine is the "progenitor" of the modern computers, because it could read, calculate, sort data stored on punched cards automatically. -
The Z1
The Z1 was a mechanical computer designed and built from 1936 to 1938 by the German computer pioneer, mathematician and engineer Konrad Zuse. It was the first programmable computer that used Boolean logic and binary numbers. -
The Mark I
The Mark I computer was built at the Harvard University with the directions of Howard Aiken. It was a big electromechanical computer that gave important calculations during the Second World War. -
The ABC
The ABC, Atanasoff Berry Computer, was the first automatic electronic digital computer created by the mathematician and physicist John Vincent Atanasoff with the help of a graduate student, Clifford Berry in 1939. It was designed only to solve systems of linear equations. -
The Colossus
Colossus, the set of computers that contributed to decipher the Lorenz-encrypted messages between Hitler and his generals during the period of the Second World War, was the first programmable, electronic, digital computer invented by telephone engineers in England from 1943 to 1945. -
The ENIAC
ENIAC was invented in 1946 by John Mauchly and J. Presper Eckert and was the first programmable, electronic, general-purpose digital computer able to solve huge problems with reprogramming.