Ruby is not a foreign word to the Internet. You can write your own SMTP server or Web server as well as use Ruby for common tasks such as CGI programming or a replacement for PHP. Writing CGI scripts with Ruby is easy because class CGI provides for writing CGI scripts – manipulate forms, cookies, and the environment. The use of class CGI lets you get into HTML query parameters for it has a number of techniques for creating HTML – that is, one method per tag. You can save all kinds of materials on an unsuspecting net user’s machine using cookies.