The document discusses the history and technology of the internet. It provides an overview of what is needed to connect to the internet, including a computer, modem, telephone line, and internet service provider. Key internet terminology is defined, such as browser, domain name, intranet, and file transfer protocol. Popular internet features like email, the world wide web, telnet, and usenet news are described. Uses of the internet and what an extranet is are also summarized. The document concludes by listing benefits of using an extranet such as improved quality, lower costs, and better communication.