All data resides on the back-room servers.
The recent change is to add protocols specialized towards hosting the display of Microsoft Windows applications. These changes reduce the amount of data that needs to go through the network connection, the amount of computing power required on the server, and associated memory consumption on the server. The other significant change is that the overall system includes the capability to run MS-Windows applications on a central server and export the displays to the desktop NCs. The application would, again, run on the central server, and be displayed on the desktop box. Recent work involves using Java-based applications to manage the export process.