With time, the PCs gained popularity, and they became affordable as well. Therefore, a new form of computing arose, in which the dumb terminals were replaced by intelligent PCs. This form of computing used the processing capalilities of the PC as well. The PC, therefore, became a 'client' that requested information from 'server'. Hence, client-server computing waS born. This is show in Figure 2.2. Note, as shown in the figure, that the server could be a mainframe or even a high-end PC.