The first is the computer technology of vacuum tubes and collection of data as a hole card. The second generation is a computer that uses the technology of transistors, and storage as a tape. Style matters is sequentially (Sequential Processing). The third age is a computer that uses the technologies of ICS (integrated circuit, IC) and storage as a magnetic plate. To work for many programs at the same time (Multiprogramming) and online (on-line) The fourth generation is a computer IC's technology is used for large scale (Large-scale integration, LSI) of electric wonchon. The works from this technology is microprocessor (microprocessor) is said to be a "Computer on a chip" in this day and age. It can be seen that the evolution from the past to the present. Computers have been developed., computer science. There is a constantly changing development say that the world of computer science is always moving (dynamics) But they rarely flexible raphatna (rigid) too much. If an error occurs in the little mechanism sometimes is huge huge problem. In addition, a development that is not yet the world or at least manageable, that is, as soon as the computer is running with the machine operating manual and according to the application while the machine is running, the humans will not be able to control.
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