Security+ TechNotes wrote: Modern operating systems use a combination of the described access control models. Although Windows NT doesn't actually use the RBAC model, it simulates it by using built-in groups, such as Power Users, Server Operators and Backup Operators. An administrator can add additional roles typically based job functions and departments. Users with the appropriate permissions can share resources such as files and printers, and give access to other users and/or groups at their own "discretion".
