The first Generation
The Second Generation
The transmitter was invented in 1947 but did not see widespread in computers in until the late 1950's. The transmitter was better than the Univac because it took up less space in a room.
Alan Turing made the the universal Turing Machine. He died by putting cyanide poisoning in to an apple and bite it because he was gay. In the WW2 Alan Turing was a codebreaker who helped break codes in the war