In the third generation of computers:

In the third generation of computers on-line, real time systems first became popular. The period of third generation was 1964 - 1972. The third generation of computer is marked by the use of Integrated Circuits (IC's) in place of transistors. A single I.C has many transistors, resistors and capacitors along with the associated circuitry. The I.C was invented by Jack Kilby.