The functions of operating systems are

Question

The functions of operating systems are

i. Process management

ii. Memory management

iii. File management

iv. Device management

Choose the correct Answer

1. A. i, ii, iii
2. B. i, iii, iv
3. C. i, ii, iv
4. D. i, ii, iii, iv (Correct answer)

Correct Answer

Option D — i, ii, iii, iv

Detailed Solution & Explanation

The correct answer is i, ii, iii, iv.

Key Points

• All four listed functions belong to the operating system:
  • Process management — creating, scheduling and terminating processes, and allocating CPU time.
  • Memory management — allocating and freeing main memory, and handling virtual memory.
  • File management — organising files and directories, and controlling access permissions.
  • Device management — coordinating input/output devices through their drivers.
• Since none of the four can be excluded, the complete set is correct.

Additional Information

• Further OS responsibilities include security and access control, job scheduling, error detection and providing the user interface.
• Common examples: Windows, Linux, macOS, Android and UNIX.