Mostly the machines got smaller and more reliable as transistors replaced vacuum tubes.
second generation
The first second generation computers came on the market in 1958.
The Second Generation Computer used transistors
Transistorized computers.
Second generation
yes
in second generation of computer transistor were used transistor are used instead of vaccum tube are used in first generation high level langauges such as gobsl, fortran are used
transistors
1956-1963
Second generation computers used electronic transistors. A small number used magnetic amplifiers.
Colossus Mark II, an improvement on Colossus Mark I which was designed to crack the Germans' code during WWII in 1943/1944.
Roughly 1958, when IBM introduced their 7090 scientific computer.