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📝 TOPS-20

📖 From Operating System • 20. Influential Operating Systems • 8 questions available

Practice MCQs for TOPS-20. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-27

2
Easy Questions
4
Medium Questions
2
Hard Questions

📝 Sample Questions

Q1. In what year did DEC stop work on its line of 36‑bit PDP‑10 computers?

🔹 A. 1980
🔹 B. 1982
🔹 C. 1984
🔹 D. 1986

💡 Difficulty: easy | ✅ Correct: C

Q2. A company needs a multi‑user environment for research labs. Which feature of TOPS‑20 would most influence its selection?

🔹 A. Advanced command‑line interpreter with built‑in help
🔹 B. Built‑in hardware pager for virtual memory
🔹 C. Support for only 64 KB memory
🔹 D. Ability to run only one program at a time

💡 Difficulty: medium | ✅ Correct: A

Q3. Why was TOPS‑20 considered more popular than its predecessor TOPS‑10 despite both running on PDP‑10 hardware?

🔹 A. Because TOPS‑20 had better graphics
🔹 B. Because TOPS‑20 added virtual memory and a user‑friendly command interpreter
🔹 C. Because TOPS‑20 was cheaper
🔹 D. Because TOPS‑20 supported 64‑bit addressing

💡 Difficulty: hard | ✅ Correct: B

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🔗 Related Topics

📝 Feature Migration in Operating Systems📝 Early Computer Systems📝 Dedicated computer systems📝 Shared computer systems📝 Overlapped I/O operating system
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