ComputerEvolution
@cpu_evolution
The transition from the rudimentary calculators to modern computers. http://www.facebook.com/ComputerEvolution
1752, Benjamin Franklin discovered the principles of electrical lightning bit.ly/1aIgVfN
1671, Gottfried Wilhelm von Leibniz invented a calculating machine which has been the basis of many computing systems developed over the...
1642, Blaise Pascal (1623-1662) built his "Arithmetic Machine", more known by the name of Pascaline bit.ly/12lpGEA
1623, Schickard Wilhelm designs a machine to perform all four arithmetic operations. Apparently the first calculating machine in history
1620 approx. Edmund Gunter and the Reverend William Oughtred invented,separately,the ruler of calculation based on the inventions of Napier
1617, John Napier also invented a device to help the multiplication bit.ly/10OjgUH
In 1614, the Scottish mathematician John Napier (1550-1617) invented logarithms bit.ly/10OjgUH
Ramon Llull (1232-1316) was probably the first person to use a mechanical device to build their bases of theological discussion......
1202, Leonardo di Pisa, better known as Fibonacci unveils Arabic numeral system in his book "Liber Abaci" bit.ly/14lMJCb
The Apple I, 1Mhz CPU, 4 Kb RAM and 256 bytes of ROM... wow !! #computerevolution on.fb.me/11ZeY7N
To complete the Apple I, users had to add a case, a transformer, the power switch, a keyboard and a video screen composite....
Twelfth century, the chinese abacus seems to be the result of the evolution of the abacus, introduced trade relations with China.
The Apple I was a fully assembled circuit board containing 62 chips. on.fb.me/11ZeY7N
Twelfth century, The Chinese abacus, the best known, is mentioned in documents of the thirteenth century.
Year 850, the Arabs adopted the decimal positional number system #computerevolution
In the I Century, Greeks developed mechanical astronomical instruments #computerevolution
300 BC, romans used to calculate boards, primitive version of the abacus. The calculate table was very extensive use in the Middle Ages.
IBM 360 could process files and numerical calculations. It was also the first computer virus attacks in 1972 #computerevolution...
In July 1976 Steve Jobs Steve Wozniak i put up for sale the first Apple, the Apple I with a price of $ 666.66. on.fb.me/11ZeY7N
The IBM System/360 was commercialized in 1964 and was the computer pioneer of the third generation on.fb.me/11ZeY7N #computerevolution
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