The Generations of Computers
The first generation was from 1951-1958. This generation is defined through the use of vacuum tubes in computers.
The second generation of computers was from 1959-1964. This generation was made up of transistors.
The third generation was from 1965-1979. This generation used integrated circuits rather than transistors.
And the fourth generation was from 1979 all through to today. Unlike the third generation, these computers all had processing information on a single silicon chip. These are referred to as microcomputers or the brain of the computer.