One of the characteristic feature of the second generation computer is the presence of

One of the characteristic features of the second generation computer is the presence of transistors. Second generation computers were developed in the late 1950s to the mid-1960s and were an improvement over the first generation computers. The second generation computers used transistors instead of vacuum tubes, which were used in the first generation computers. The transistor is a semiconductor device that can amplify electronic signals and switch them on and off, and is smaller, more efficient, and more reliable than vacuum tubes. The use of transistors made computers faster, smaller, more reliable, and more affordable, leading to the development of more powerful and versatile computers.