First Generation = First Generation. The period of first generation was from 1942-1956. The computers of first generation used vacuum tubes as the basic components for memory and circuitry for CPU (Central Processing Unit). These tubes, like electric bulbs, produced a lot of heat and the installations used to fuse frequently. Second Generations = A transistor computer, now often called a second generation computer, is a computer which uses discrete transistors instead of vacuum tubes. ... A seco

The annual Vintage Computer Festival East at the InfoAge Science and History Museum showcases rare and functional vintage hardware, from 60's Navy computers to minidisc players to Macs and beyond. The Verge's Andru Marino explores why getting together to preserve and understand vintage computing is worth a trip out of the city. | The Verge