Podcast
Questions and Answers
Which mode allows the operating system to protect itself and other system components?
Which mode allows the operating system to protect itself and other system components?
What is the purpose of the mode bit provided by hardware?
What is the purpose of the mode bit provided by hardware?
What happens when a system call is made?
What happens when a system call is made?
Study Notes
System Protection and Mode Bit
- Kernel mode allows the operating system to protect itself and other system components.
- The mode bit provided by hardware is used to differentiate between kernel mode and user mode.
System Calls
- When a system call is made, the operating system switches from user mode to kernel mode.
- This switch allows the operating system to execute privileged instructions and access protected resources.
- The system call interface provides a way for user-mode applications to request services from the operating system.
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Description
Test your knowledge of operating system operations and dual-mode operation with this quiz. Learn about user mode, kernel mode, system calls, and the role of the mode bit in distinguishing between user code and kernel code.