Client Server Model

The term "Client-Server model" has several uses but all are based around the same concept of using a client system to access a centralized server in order to use a service.

When a network protocol is described as being 'client-server', we mean that the application runs as a service on a server, and a client version of the application is used to access the service.

The term 'client-server network' is one where a centralized server provides network services to other clients on the network. Such a network is described as a 'domain' in Linux, Macintosh, Unix, and Windows operating systems.