The operating system assumes a pivotal role in computer systems as it serves as a vital intermediary between users and hardware resources. It encompasses a multitude of functions, including process scheduling, memory management, file system organization, device administration, and user interface facilitation. By optimizing the utilization of system resources, the operating system enables concurrent execution of multiple programs. It abstracts hardware complexities, enabling software applications to interact seamlessly with underlying components. Furthermore, it ensures a secure and stable execution environment, enhances system performance, and facilitates effective resource allocation.