My friend shop is going to use a software to store and enter customers data. He will need to network two copmuter together. One in the front and one in the back of the store. I think the one in the back will become the mainframe, which to store data. My question is, He will need to install the software onto the 2 PC, RIGHT? and how the PC and the software should be setup, in order for the data to be store in the mainframe? By doing that, he will only need a dummy computer, right, if so, what will the dummy computer need to do such work. Or if anyone can think of any other way that he may do to achieve such task.