5.1 The web and markup

• The web


  A client–server system
• How the web works


  1. User sends request for information to server

  2. Server finds requested information and sends it back to client

  3. Browser displays the information
• Server

  The computer that provides the information
• Client


  The user's browser program
• Markup


  Adding special control 'tags' to define effects like font style, links to other web pages, etc.
• The way the browser displays the information is the result of markup of the original file