1st Generation (1940-1960s): Vacuum tubes and possibilities

The start of the electrical computer age produced first generation electrical computers that required large rooms to contain them. These computers were large, heavy, power-consuming devices that had poor reliability (mean time between failures, MTBF): nothing like today’s handheld consumer devices that are more powerful, fit in your pocket, easily connect wirelessly to networks and can last 4+ hours on a single charge.