Which statement about system calls is correct?

Options

  • A. System calls provide an interface between user programs and OS services
  • B. System calls can only be used for mathematical calculations
  • C. System calls are hardware devices used for permanent storage
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

A. System calls provide an interface between user programs and OS services

Detailed Explanation

Explanation: System calls allow user programs to request services from the operating system kernel. Examples include read(), write(), fork() and open() in Unix-like systems.

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