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📝 CP/M and MS/DOS

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

Practice MCQs for CP/M and MS/DOS. 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. Who is credited with writing the original CP/M operating system?

🔹 A. Gary Kildall
🔹 B. Bill Gates
🔹 C. Steve Jobs
🔹 D. Linus Torvalds

💡 Difficulty: easy | ✅ Correct: A

Q2. How did the design of CP/M influence the later development of MS‑DOS?

🔹 A. MS‑DOS copied CP/M’s file‑system layout and command syntax
🔹 B. MS‑DOS abandoned CP/M concepts entirely
🔹 C. MS‑DOS used CP/M’s graphical user interface
🔹 D. MS‑DOS was built on a different hardware architecture unrelated to CP/M

💡 Difficulty: medium | ✅ Correct: C

Q3. A legacy application uses CP/M BDOS calls for file management. To emulate this on a modern operating system, which software layer must be created?

🔹 A. A compatibility translation layer that intercepts BDOS calls
🔹 B. A new hardware device driver for floppy disks
🔹 C. A graphical front‑end that mimics CP/M menus
🔹 D. A network protocol that forwards file requests to a remote server

💡 Difficulty: hard | ✅ Correct: A

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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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