Minggu, 06 Maret 2011

Computer history

computer history
since there is a computer, data processing has been done by humans. Humans also find the tools of mechanics and electronics to help human beings in the calculation and data processing in order to get results faster. Computers that we meet today is a long evolution of human inventions since available including mechanical and electronic equipment.
     Today computers and supporting devices have been included in every aspect of life and work. Computers that exist now have a greater ability than ordinary mathematical calculations. Among them is a computer system at the kassa supermarket shopping goods is able to read the code, telephone exchange that handles millions of calls and communications, computer networks and the Internet that connects various places in the world.

The existence of the Second World War, the countries involved in the war sought to develop computers to exploit their potential strategic importance computer. This increased funding to accelerate the progress of the development of computer and computer engineering. In 1941, Konrad Zuse, a German engineer to build a computer Z3, to design airplanes and missiles.

    
Party allies also made other progress in the development of computer power. In 1943, the British completed the secret code-breaking computer called Colossus to decode German-secret used. The Colossus's impact influenced the development of the computer industry because of two reasons. First, Colossus was not a multi-purpose computer general-purpose computer), it is only designed to decode secret messages. Second, the existence of these machines kept confidential until a decade after the war ended.

    
Work done by the Americans at that time produced some other advancement. Howard H. Aiken (1900-1973), a Harvard engineer working with IBM, succeeded in producing electronic calculators for the U.S. Navy. The calculator is a length of half a football field and has a range of 500 miles of cable. The Harvd-IBM Automatic Sequence Controlled Calculator, or Mark I, an electronic relay computer. He uses electromagnetic signals to move the mechanical components. The machine beropreasi with slow (it takes 3-5 seconds for each calculation) and inflexible (the order of calculations can not be changed). The calculator can perform basic arithmetic calculations and equations are more complex.

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