Description: User mode is a restricted operating mode in operating systems that allows user applications to execute their processes with limited access to system resources. This approach is fundamental for the security and stability of the system, as it prevents malicious or faulty applications from interfering with the operating system’s functioning or accessing sensitive data. In this mode, applications cannot execute privileged instructions that could alter the system state or directly access the memory of other processes. In contrast, kernel mode allows full access to system resources, which is necessary for critical operating system operations. The separation between these two modes helps protect the integrity of the system and ensures that applications operate in isolation, minimizing the risk of failures and vulnerabilities. Additionally, user mode facilitates memory management, as each application operates in its own address space, preventing one application from affecting another. This architecture is essential in modern operating systems, where multitasking and security are key priorities.
