Evolution before a computer [to]
computers have evolved very fast. Since the ancient times onwards We humans are trying to invent a tool to assist in the calculation and counting. Since the start of the fingers. Until the pebble stone man invented a simpler method than this. It became the mechanism used in the calculation. It evolved into today's computers are divided into four age era before mechanization. (Premachanical) (2497-2501 BC) in this age of computers used vacuum tubes (Vacuum tube) is an electronic circuit. The machine also has a very large Many power It is hot, so often error prone. In this computer age, including UNIVAC I, IBM 600 's mechanical (Mechanical) (2502-2507 BC), the computer age, the transistor (Transistor) is an electronic circuit. And the ring magnets as memory. The computer is smaller than the first. Lower costs Use less electricity And precision electro-mechanical era will air. (Electromechanical) (2508-2513 BC), the computer is integrated IC (Integrated Circuit) is a semiconductor logic circuit that can be loaded and then printed on a sheet of silicon (Silicon) called "chips". Electronic Age (Electronic) (2514-2523 BC), the computer is integrated LSI (Large-Scale Integrated Circuit) integrated circuits, IC number on one piece of silicon chips can contain more than one million copies. With this new technology cycle, resulting in filling a key concept for the basic functions of a computer CPU into a single chip called "microprocessor.
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