2.4 First-Generation
From 1951 to 1959, computers went through some interesting changes. These were the first true computers, as we know them. First-generation computers used electricity, the vacuum tube, and magnetic drums and tape for memory.
How are first-generation computers unique?
First-generation computers had vacuum tubes, resistors, and welded metal joints. They were large, slow, expensive, and produced a lot of heat. In addition, first-generation computers often broke down because of burned-out vacuum tubes.
First generation computers also needed many experts to operate them. In fact, when these computers were running, people stood by with shopping carts full of replacement tubes.
