On 8 March 1955, the first digital computer with real-time graphics and magnetic core RAM, Whirlwind machine, was introduced by MIT. It was a revolutionary computer.
In 1956, demonstrated at the Massachusetts Institute of Technology, there was a computer invented, which was TX-0 (Transistorized Experimental computer) and considered the first transistorized computer. Also, the PDP-1 was released by Digital Equipment Corporation in 1960. It was the first minicomputer.