Backup important documents, files, and pictures – This is a side benefit of sharing files. You can copy files from one computer to another to have as a backup; this way, in case one PC crashes, your important stuff is still available on another PC!
Security – The device that makes the network possible is known as a router, which connects all the PCs together, and provides the single point of connection to the internet. Almost all routers sold today incorporate a firewall – this is a device that puts up a “wall” between your home network and the outside world, preventing others on the internet from gaining access to your PCs. Many can even be configured with “parental” and other controls that can also limit which types of web sites can be visited by the PCs on your network.
