Setting up a LAN is relatively simple.
Most people think setting up a LAN (Local Area Network) is lots of hard coding and stuffing cable in your pc.
You'll need a few things.
Assuming you have a configured internet network, you can just put your ISP/Internet cable into your router.
Next you can connect all of your pc's with a cable to the left over slots of your router.
now boot up all the computers and try to connect with each other by opening each others files or playing a game or something.
Your network schould look somewhat like this:
Congratulations. you now have set up a basic Local Area Network.
Succes with your LAN
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