Description: Unallocated memory refers to the portion of memory in a computer system that has not been allocated to any running process or application. This memory is essential for the efficient management of system resources, as it allows the operating system to maintain free space that can be utilized when additional resources are required by applications. Unallocated memory can be seen as an available resource that can be claimed by processes when needed, contributing to the flexibility and efficiency of the system. Furthermore, managing this memory is crucial to avoid issues such as fragmentation and resource exhaustion, which could lead to poor performance or system failures. In terms of system architecture, unallocated memory can be managed through techniques such as paging and segmentation, which allow the operating system to dynamically allocate and free memory. In summary, unallocated memory is a key component in the memory management of computer systems, ensuring that resources are available to meet the changing demands of running applications and processes.