Question

1st gen computer based on .............

Answer 1

vaccum pumps were ilused
they were heavy and used to occupy large space
they were slow.. and not portable

Answer 2

During the period of 1940 to 1956 first generation of computers were developed. The first generation computers used vacuum tubes for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms.John Bardeen (1908–1991), William B. Shockley (1910–1989), and Walter H. Brattain (1902–1987) invented the transistor at Bell Telephone Laboratories in the mid-1940s. By 1948 it was obvious to many that the transistor would probably replace the vacuum tube in devices such as radios, television sets, and computers.The first computers used vacuum tubes for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms. These computers were very expensive to operate and in addition to using a great deal of electricity, the first computers generated a lot of heat, which was often the cause of malfunctions.