The document discusses the World Wide Web (WWW) and its key components. It was developed by Tim Berners-Lee in 1989 at CERN to organize research documents available on the Internet. The WWW uses a client-server model where clients access content from servers using browsers. URLs provide a standard way to locate web pages and consist of the protocol, domain, port, and path. Cookies are small files that help websites remember information about users. Web pages are documents that can be static, dynamically generated, or active.