An example of a computer operating system is Windows 2000.
A computer operating system is a software program that acts as an intermediary between the computer hardware and the user applications. It manages the computer's resources, such as the central processing unit (CPU), memory, and input/output (I/O) devices, and provides a user interface for the user to interact with the computer.
Windows 2000 is a computer operating system developed by Microsoft. It was released in 2000 and was designed to be a more stable and secure version of Windows. Windows 2000 was widely used in businesses and organizations, and it introduced many new features such as the Active Directory and support for Plug and Play hardware.
Therefore, the answer is Windows 2000.