The document discusses the history and components of the Internet and World Wide Web. It describes how the Internet works using protocols like TCP and IP. The World Wide Web is a collection of servers that use HTML and URLs. The document outlines many applications of the Internet and Web like email, browsers, search engines, social networks, e-commerce. It also discusses intranets, which are internal networks, and extranets, which link a company to partners. Management of issues like privacy, security and speed affect usage of all networks.