A

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Q. Which one of the following is the first second-generation computer?

  • (A) IBM 801
  • (B) IBM 650
  • (C) IBM 7090
  • (D) IBM 7070
  • Correct Answer - Option(C)
  • Views: 18
  • Filed under category Computer
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Explanation by: Admin

IBM 7090 was one of the first second-generation computers, introduced in 1959.

  • It used transistors instead of vacuum tubes, marking the shift from first to second-generation computers.
  • It was designed for scientific and engineering applications and was a transistorized version of the earlier IBM 709.

Other Options:

  • IBM 801: Related to RISC architecture, much later.
  • IBM 650: A first-generation computer using vacuum tubes.
  • IBM 7070: Also a second-generation machine but released after the IBM 7090.

Correct Answer: (C) IBM 7090

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