Kernel mode is a privileged execution mode in a computer's operating system that allows the code to run with unrestricted access to all hardware resources, enabling it to perform critical tasks such as managing memory and executing system calls. This mode is essential for maintaining system stability and security, as it ensures that only trusted code can perform sensitive operations that could affect the entire system.

Kernel Mode

Kernel mode

privileged execution mode

An operating system (OS) is the fundamental software that manages computer hardware and software resources, providing common services for computer programs. It acts as an intermediary between users and the computer hardware, ensuring efficient execution of applications and user tasks.

operating system

unrestricted access

Hardware resources are the physical parts of a computer, like the brain, memory, and body, that help it work and do tasks. They are like the toys and tools you use to play and learn, helping the computer think and do jobs.

hardware resources

critical tasks

managing memory

executing system calls

System stability refers to the ability of a system to return to equilibrium after a disturbance, ensuring consistent and predictable performance over time. It is crucial in various fields, such as engineering, economics, and ecology, where maintaining balance and preventing system failure are essential for optimal functioning.

system stability

System security is the practice of protecting computer systems and networks from digital attacks, unauthorized access, and damage to hardware, software, or data. It involves implementing measures to ensure the confidentiality, integrity, and availability of information and resources within an organization.

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