The Difference Between the Internet and www.

What is The Internet?
The Internet is a massive network of networks(interconnection of networks), a networking infrastructure.

It connects millions of computers together globally, forming a network in which any computers can communicate with any other computer as long as they are both connected to the Internet. Information that travels over the Internet does so via a variety of languages known as protocols.

What is The Web (World Wide Web)?
The World Wide Web(www.), or simply Web, is a way of accessing information over the medium of the Internet.

It is an information-sharing model that is built on top of the Internet. The Web uses the HTTP (Hypertext Transfer Protocol) protocol, only one of the languages spoken over the Internet, to transmit data and information. Web services, which use HTTP to allow applications to communicate in order to exchange business logic, use the the Web to share information.

The Web also utilizes browsers, such as Internet Explorer or Firefox, to access Web documents called Web pages that are linked to each other via hyperlinks. Web documents also contain graphics, sounds, text and video.
The Web is just one of the ways that information can be disseminated over the Internet. The Internet, not the Web, is also used for e-mail, which relies on SMTP, Usenet news groups, instant messaging and FTP.

So the Web is just a portion of the Internet, albeit a large portion, but the two terms are not synonymous and should not be confused.