Fat client

In computing, a Fat Client (also known as Rich-Client) is a term from client-server architecture for a client that performs the bulk of the data processing operations. The data itself is stored on the server. See thin client for contrast and for a more in-depth discussion.

Although the term usually refers to software, it can also apply to a network computer that has relatively strong processing abilities.

An example of a Fat Client would be a Swing (Java) application.