Say that you have 12 people in your business. Each has their own computer and wants to be able to print and have internet access. you don't want to pay for six modems (for internet connections) and six printers. Why not have one internet connection and one printer connected to one computer. This computer has all other computers attached to it. They all share its internet and printer. They can also each have some shared folders that everyone on the network can access (upon providing a password).

Connect to you work network from your home computer and have access to all of your files, and network resources as though you were sitting at your computer at work

VPN (virtual private network) enable your office LAN (Local Area Network) to securely communicate with other networks that are distant from each other and the Internet via an ADSL/DSL connection (using routers).

VPN (virtual private network)

Access/Control you work PC from the comfort of you home