Directory services are used to store and retrieve information about objects, which are managed by the service. On a network, these objects can include user accounts, computer accounts, mail accounts, and information on resources available on the network. Directory services shouldn’t be confused with the directory itself. The directory is a database that stores data on the objects managed through directory services.
Directory services are used by many different operating systems to organize and manage the users, computers, printers, and other objects making up the network. Some of the directory services that are produced by vendors include: