Summary--Types of Servers

Display--the system running the X server.

Login and session server--the system running the desktop session (Login Manager, Session Manager, Window Manager, File Manager, and the like).

Application server--a system on which an application runs. Also called the execution host.

File server--a system on which data files for applications are stored.

Help server--a system on which help data files are stored.

(Action) database server--a system where files containing action and data type definitions are stored.

Icon server--a system on which icon files are stored.

The network may include additional servers, such as a password server, mail server, video server, and so on.