Description: System memory refers to the portion of memory allocated for the operation of an operating system and its processes. This memory is crucial for the performance and stability of the system, as it allows the operating system to manage and execute multiple tasks simultaneously. System memory is divided into two main modes: kernel mode and user mode. In kernel mode, the operating system has full access to all hardware resources, enabling it to perform critical operations and manage memory efficiently. On the other hand, user mode restricts access to certain resources, thus protecting the system from potential failures or malicious behaviors from applications. Memory management in an operating system involves dynamically allocating and freeing memory, ensuring that each process has enough space to execute without interfering with others. This includes techniques such as paging and segmentation, which optimize the use of physical and virtual memory. Therefore, system memory is an essential component that influences the responsiveness and efficiency of computer systems.
