Fourth Generation Computers (1972- 1984)

Jul 7th, 2015
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Chicago State University
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Computers built after 1972, called Fourth Generation computers were based on LSI (Large Scale Integration) of circuits (such as microprocessors) - typically 500 or more transistors on a chip. Later developments included VLSI (Very Large Scale Integration) integrated circuits typically 10,000 transistors. Modern circuits may now contain millions of components. This has led to very small, yet incredibly powerful computers. The fourth generation is generally viewed as running right up until the present, since, although computing power has increased, the basic technology has remained virtually the same. By the late 1990’s many people began to suspect that this technology was reaching its limit, further miniaturization could only achieve so much. 1 GB RAM chips have circuitry so small that it can be measured in terms of atoms. Such small circuits pose many technical problems like the increase in temperature and radiation.

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. Fourth Generation Computers (1972- 1984) Computers built after 1972, called Fourth Generation computers were based on LSI (Large Scale Integration) of circuits (such as microprocessors) - typically 500 or more transistors on a chip. Later developments included VLSI (Very Large Scale Integration) integrated circuits typically 10,000 transistors. Modern circuits may now contain millions of components. This has led to very small, yet incredibly powerful computers. The fourth generation is generally viewed as running right up until the present, since, although computing power has increased, the basic technology has remained virtually the same. By the late 1990s many people began to suspect that this technology was reaching its limit, further miniaturization could only achieve so much. 1 GB RAM chips have circuitry so small that it can be measured in terms of atoms. Such small circuits pose many technical problems like the increase in temperature and radiation. Fifth Generation Computers (1984-1990) The use of VLSI and artificial intelligence concept is used in this generation of computers. Expert systems, pattern recognition, voice recognition, signature capturing and recognition, microprocessor controlled robots etc. are some of the sophisticated developments in the field of computers. They will be able to take commands in a audio visual way and carry out instructions. Many of the operations which require low huma

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