Each generation of computer I characterized by a major technological development that fundamentally changed the computers operates resulting increasingly smaller , cheaper , more powerful and efficient and reliable devices.
1. First Generation (1940-1956): VacuumTubes the first computer used vacuum tubes for circuitry and magnetic drums for memory and were often enormous,talking up entire rooms. There were very expensive to operate and in addition to using a great deal of electricity generated a lot of heat which was often the cause of malfunction first generation computers relied on mac
