Across
- 4. Guarding the system against unauthorized access (10)
- 5. Mechanisms used by programs to request services from the OS (8)
- 7. The initial program that starts the operating system (4)
- 9. Part of OS that controls hardware devices (6, 6 letters)
- 10. OS Software that runs between the hardware and user programs (2 words, 6 & 2 letters)
Down
- 1. Services like file management, device handling, and security (8)
- 2. The way the OS is organized or built (9)
- 3. Programs that help manage files, edit text, and compile code (6)
- 6. Different periods or stages of OS development (10)
- 8. Operating system categories like batch, time-sharing, real-time (5)