This kind of network also consists of servers and clients, but the relationship between client and server is different. Unlike mainframe terminals, however, thin clients are connected to a network, not directly to the server, which means the client does not have to be physically near the server. In a typical thin-client environment, only the keystrokes, mouse movements, and screen updates travel across the connection. Thin clients range from complete dependence on the server to the autonomous PC, which can both run on its own applications and act as a terminal. Furthermore, the Windows display remains consistent even when using non-Windows applications, so you do not have to learn new interfaces in heterogeneous network environments.
Thin clients link to the farm instead of a particular server.
If a single server fails, the other servers in the farm automatically take over the functions of the failed server so that work is not interrupted and data is not lost. RDP was developed by Microsoft for its Terminal Server and ICA is Citrix technology. Only the user interface is sent to the client, leaving the rest of the application to run on the server. This method drastically reduces network traffic and client hardware requirements. Although RDP is the older protocol, ICA has become the de facto standard for server-based computing.