What is Server-Based Computing?

In server-based computing, users do not have PCs on their desks. Instead, each user has a display, keyboard, mouse and a thin client. A thin client is a special device that connects the display, keyboard and mouse on the user's desk to a server. The server, usually placed in a secure location, contains all the programs and data that the user needs for their work or learning. The server and thin clients are connected using standard computer networking.

PCs: Standalone devices, not designed for shared use.

Thin Clients: Networked devices, designed for sharing computing resources.

Advantages of Thin Clients

• A faster server means faster performance for all users

• Desk units have no moving parts, so they fail less often

• Users are not tied to a particular computer and can work from anywhere on the premises

• The periodic PC upgrade cycle is eliminated; only the server may need an upgrade

Limitations of Thin Clients

• Not suitable for heavily graphical applications

• Requires a properly structured network to work well

• Suitable only for setups with more than 10 computers; smaller setups do not show the cost benefits

Thin clients are rugged devices that rarely need replacement. When the system becomes slow, the server is upgraded. Thin clients consume very little power, generate very little heat and have no moving parts, so they fail much less often. In server-based computing, all data and programs are centralised on the servers, which makes backup and maintenance easier and improves security. Thin clients are highly resistant to viruses and malware, which makes the working environment more secure for everyone.