Description : Compare 1st and 3rd generation computers.
Last Answer : First Generation Computers (1940-1956): They used vacuum tube technology. Vacuum tubes produce lot of heat and needs to be cooled with A.C. Their examples were ENIAC, UNIVAC-I, ... Their examples were Burroughs 6700, IBM System / 360, System 3 and Control Data Corporations 3300 and 6600.