Multiple choice general knowledge science & technology

First generation computer systems used

  1. Transistors

  2. Vacuum tubes

  3. Magnetic cores

  4. Silicon chips
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

First-generation computers (1940s-1950s) used vacuum tubes for electronic switching and amplification. These large, heat-generating devices were eventually replaced by smaller, more reliable transistors in second-generation systems. The ENIAC, a famous first-generation computer, contained over 17,000 vacuum tubes.

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