[header] How to make an intranet [title] Create a local area network (lan) in your home or office. [step] This involves connecting computers, printers, modems, and other devices. [substeps] To create a lan, you should have at least 2 computers. 
Use network interface cards (nics) to build the connection for your lan. Nics are hardware that you can insert into the motherboards of your computers to add ports that will allow you to establish your network.