While the World Wide Web comprises much of the content available over the Internet, you can use the Internet for much more than browsing and accessing Web sites. The Internet and the World Wide Web are closely related but not the same. The Internet is a decentralized global network of computers. The Web is a collection of documents, or Web sites, that you can access using the Internet and your Web browser software.
Web sites reside on computers called Internet servers.
When you're connected to the Internet, your Web browser software can communicate with Internet servers, asking them to send to your computer a copy of the Web page you'd like to see. The interconnected computers of the Internet are of different types, and they use different operating systems. Many types of information are accessible over the Internet. Join in a Usenet newsgroup. Transfer documents and programs between your computer and FTP, or file transfer protocol, sites.