Multiple choice

Which of the following generation computers had semi-conductors doped with impurities, better known as the transistors?

  1. First generation computers

  2. Second generation computers

  3. Third generation computers

  4. None of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Second-generation computers (roughly 1956-1963) replaced vacuum tubes with transistors, which are semiconductor devices used to amplify or switch electronic signals.