What type of operating system runs on a server to manage data, users, groups, and applications?

The type of operating system that runs on a server to manage data, users, groups, and applications is a network operating system. This type of operating system is specifically designed to facilitate the sharing of resources and management of devices across a network. It enables multiple users to access the network resources, including files, printers, and applications, all while maintaining user accounts, permissions, and security measures.

Network operating systems provide the necessary functionalities to manage user authentication, arrange data storage, and ensure that applications can be accessed securely by various clients on the network. Additionally, they often come equipped with administrative tools that help in configuring and managing network components effectively.

In contrast, real-time operating systems are designed for applications that require immediate processing and response, such as embedded systems in automotive or aerospace applications, while distributed operating systems manage a collection of independent computers to present themselves as a single coherent system. Batch operating systems, on the other hand, execute jobs in groups rather than allowing for real-time processing or interaction, making them less suitable for the dynamic needs of server management.