| 摘要 |
A computing system includes a hierarchical set of servers. The hierarchical set includes a master server and one or more slave server. The master server and slave servers communicate with at least one non-intelligent user system over a communications network. The master server has full access to each non-intelligent user system. The master server controls access permissions for each slave server to the non-intelligent user system(s). Each higher level slave server can control access permissions for sub-level slave server(s) to the non-intelligent user system(s). A master or, if permitted access, a slave server, creates a window in a display of the non-intelligent user system, and can provide access to the window to any lower-level slave server to send pixels to fill that window. The pixels can be the graphics output of an application such as a browser or spreadsheet or the pixels can be video (either live or read from a hard drive). In other applications of the servers, the server system can control output on components of the user system, and receive input from components and peripherals of the user system, all via communications over the network. Access to respective non-intelligent user systems is dictated by the master server and each higher level slave server of the hierarchical set of servers. Data representing input of components and peripherals is multiplexed and communicated over the network by the user system, and data representing output of components of the user system is received by the user system over the network and demultiplexed and delivered to the component for output on the user system. |
