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1946-1959
The period of first generation was from 1946-1959. The computers of first generation used vacuum tubes as the basic components for memory and circuitry for CPU (Central Processing Unit) -
As commercial interest in computer technology intensified during the late 1950s and 1960s, the second generation of computer technology was introduced—based not on vacuum tubes but on transistors . John Bardeen (1908–1991), William B. Shockley (1910–1989), and Walter H. -
Fifth-generation computers, also known as modern computers, are still in the development stage and are based on artificial intelligence. In 1982, Japan was invented the FGCS (Fifth Generation Computer System) -
The computers of third generation used Integrated Circuits (ICs) in place of transistors. A single IC has many transistors, resistors, and capacitors along with the associated circuitry. The IC was invented by Jack Kilby. This development made computers smaller in size, reliable, and efficient.
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Fourth Generation of computers was between 1971 – 1980. These computers used the VLSI technology or the Very Large Scale Integrated (VLSI) circuits technology. Therefore they were also known as the microprocessors.
