Being in the advantageous environment of a built local area network (LAN), there is no need to deeply understand how the LAN is constructed, nor is it necessary to be familiar with the hardware structure, wiring methods, communication protocols, and operating systems of the LAN. In the company, all these things are handled by technical personnel. What we need to do is make good use of the LAN. The original intention of setting up a LAN is to connect computer resources like using the addition rule, and then share resources across the entire network like "communism." Below, let's take a look together at how to share the "communist" resources of a LAN, turning the use of computer network resources into multiplication, or even exponentiation.