Help! In Linux, how does one implement a computer?

Help! In Linux, how does one implement a computer? -- Linux general technology-Linux technology and application information. For details, refer to the following section. Now the company uses a one-to-two system with two monitors and two sets of keyboard and mouse on a host, which is implemented using BeTwin software in windows.
Because the ERP system with B | S structure is used now, it can work as long as a browser is used, so I want to use Linux to drive windows out and let LINUX flourish. However, no software packages can be directly installed in LINUX.
In fact, in theory, the support for multiple users in Linux is much better than that in windows. If the implementation can be easily delayed, Linux should be able to win more industry users.
I am studying the implementation method on the following webpage. Unfortunately, the hardware environment introduced here is too old and I don't know if it can be implemented smoothly.
Http://cambuca.ldhs.cetuc.puc-rio.br/multiuser/
The hardware configuration here is: the old ati rage xl with integrated graphics card 945 motherboard + PCI interface. There is no PCI-E X 16 or AGP.
Let's discuss it with you.
Enter your LINUX version, video card configuration, and motherboard information.
(3): OS: 0D1: 0D1