Generations of Computers
The first generation
Switches replaced vacuum tubes in the second generation of computers. The switches were invented in 1947 but did not see the use in computers until the late 1950s. The switch was much better than the vacuum tube, making computers become smaller. It also made them lighter, faster and quicker to use. Although the switch still gave off a lot of heat. That heat damaged the computer but it was a still a lot better than the vacuum tube.