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2500 BCE
La tablilla Plimpton
Limpton 322 is a clay tablet from the ancient Babylonian civilization. Specifically, it is object number 322 in the George Arthur Plimpton collection donated to Columbia University in the 1930s. -
2000 BCE
Abaco
It is a device used to perform simple arithmetic operations (addition, subtraction and multiplication). It consists of a wooden square with parallel bars along which movable balls run, also useful for teaching these simple calculations. -
500 BCE
Calendario mesoamericano
It is the calendrical systems devised and used by the pre-Columbian cultures of Mesoamerica. Besides keeping time, Mesoamerican calendars were also used in religious observances and social rituals, such as for divination. -
Huesos de Napier
It is a manually-operated calculating device created by John Napier of Merchiston, Scotland for the calculation of products and quotients of numbers. The method was based on lattice multiplication, and also called 'rabdology'. Using the multiplication tables embedded in the rods, multiplication can be reduced to addition operations and division to subtractions. -
MAquina de multiplicar
This system allowed to multiply two numbers directly, and not through consecutive additions. Although it is called the system of León Bollée, it was not really this, the inventor of this technique to multiply directly, since it is attributed to the Spanish writer Ramón Verea, who in 1878 developed a metal cylinder with 10 sides, each of which had a column of holes with 10 different diameters. -
La rueda de Leibniz
It is a cylinder with a set of teeth of incremental lengths which, when coupled to a counting wheel, can be used in the calculating engine of a class of mechanical calculators. Invented by Leibniz in 1673, it was used for three centuries until the advent of the electronic calculator in the mid-1970s. -
Maquina analitica
The Analytical Engine was a proposed mechanical general-purpose computer designed by English mathematician and computer pioneer Charles Babbage. It was first described in 1837 as the successor to Babbage's difference engine, which was a design for a simpler mechanical computer. -
El álgebra de Boole y la codificación binaria
Boolean algebra was an attempt to use algebraic techniques to deal with expressions of propositional logic. ... This logic can be applied to two fields: To analysis, because it is a specific way of describing how circuits work. -
Maquina enigma
It is an electromechanical device with rotors for encrypting messages, intended to be used by banks and commercial companies to keep their communications secret. -
ENIAC
Electronic Numerical Integrator and Computer, was commissioned by the USA ballistics laboratory with the Moore School in Philadelphia, being J. Presper Eckert its chief engineer and John W. ... With the experience of ENIAC, the architecture of modern computers was defined or von Neumann architecture. -
Impresora laser
Invented by Gary Starkweather during the 1973s and first marketed in 1977,1 the printing device consists of a photoconductive drum attached to a toner reservoir and a laser beam that is modulated and projected through a mirror disc toward the photoconductive drum. The rotation of the disc causes a sweep of the beam on the generatrix of the drum. -
Pentium
El primer Pentium se lanzó al mercado el 22 de marzo de 1993, con velocidades iniciales de 60 y 66 MHz, 3.100.000 transistores, caché interno de 8 KiB para datos y 8 KiB para instrucciones; sucediendo al procesador Intel 80486.
