server based computing (SBC)
Server-based computing(SBC) is an access infrastructure that is considered a cost-saving alternative to client- server architectures. In this concept, a powerful server works with thin clients that have to retrieve all applications and data from the central server, which is why server-based computing is also known as thin client computing.
The fact that server-based computing is cost-saving is partly due to the total cost of ownership( TCO) of the thin clients, and partly due to the complete centralization of management and the associated central responsibility for security. Within the access infrastructure, each client has secure access to the server, whether in-house or over the Internet. The security status of the end devices and their access is automaticallychecked and then a rule-based decision is made as to which actions the user is allowed to perform in detail.
The savings potential for server-based computing can be seen in the lower service effort due to software standardization, in the longer product life cycle of the thin clients and in the faster software updates. In addition, server-based computing requires only a small amount of bandwidth, since only the input commands and the screen displays are transmitted. It can therefore be implemented using UMTS or EDGE.
Server-based computing relies on mainframes and, with thin clients, on inexpensive terminals. Windows Terminal Service is used as the operating system; this function is integrated into Windows 2000 servers. Hosted Virtual Desktop( HVD) is a further development of server-based computing.