When most people say the "internet" they actually mean browsing the web through a web browser by using web addresses (like www.macrumors.com). But what other uses does the internet serve for most people other than web browsing? I've seen terms like "WAN", but what does a "WAN" look like on a computer screen? Do you access it through a web browser? It seems that browsing the web is only a portion of the internet, but that is the only portion that I know how to use and access (as well as most people). So, what does it look like to use other parts of the internet, like "WAN", "VPN", etc.?