Multiple choice general knowledge science & technology

Which of the following is first generation of computer

  1. EDSAC

  2. IBM-1401

  3. CDC-1604

  4. ICL-2900
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A Correct answer
Explanation

EDSAC (Electronic Delay Storage Automatic Calculator) was a first-generation computer built at Cambridge University in 1949. It used vacuum tubes and mercury delay lines for memory. The other options are from later generations: IBM-1401 (second generation, transistors), CDC-1604 (third generation, integrated circuits), and ICL-2900 (third generation).

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