Q. Which one of the following is the first second-generation computer?
✅ Correct Answer: (C)
IBM 7090
Explanation:
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
Explanation by: Mr. Dubey
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