Supervisor Mode, also known as kernel mode, is a privileged operating state where the operating system has unrestricted access to all hardware and system resources. This mode is essential for executing critical system tasks, managing hardware, and ensuring security by isolating user applications from direct hardware manipulation.

Supervisor Mode

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

privileged operating state

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 refers to the physical components of a computer system or electronic device, including processors, memory, storage devices, and input/output peripherals. Understanding hardware is essential for optimizing system performance, ensuring compatibility, and enabling effective troubleshooting and maintenance.

hardware

System resources are the essential components required by a computer system to perform tasks efficiently, including CPU, memory, storage, and input/output capabilities. Proper management of these resources is crucial for optimizing system performance and ensuring stability in multitasking environments.

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