What are computers?

Computers are machines capable of doing any mathematical calculation, appropriate for work with information and data processing.

Computers are used for a lot of things, among them: storage by data, data processing, calculation in wide scale, industrialist design, treatment of graphic picture, virtual reality, entertainment and culture. This machine is composed by a physical system and a programmable logical system, and they depend on each other. Nowadays the computers are considered the “Icon of the Information Age”.

     The first electromechanical computer appears in 1936, constructed by a german engineer Konrad Zuse (1910-1995), he used relés that did the calculation and datas read in tape. In Second World War was created the computers that are used nowadays. The American Marine working with the Harvard University develops the “Harvard Mark”.

          In second plan and in secret, the American Army build the ENIAC (Electronic Numeric Integrator And Calculator) the first computer valve was capable of doing 500 multiplication by seconds. The project objective was used in war for calculate ballistics trajectories, ENIAC was keep in secret until the end of war when it was uncovered to the world.