Scripting for Interactive Sites
Earlier in this chapter you learned that creating dynamic Web pages is a valuable feature. This allows a Web server (such as IIS) to create Web pages based on information contained in databases or other files the server has access to. For example, you might want to check your account balance at your bank using an online application. After you supply the information necessary to authenticate you to the Web server, and then give it your account number, the server can look up the balance and construct a web page to return this information to you.
The original server-side programs, called CGI programs, were complex and difficult to write and debug, until bright people developed scripting languages for Web servers. ...
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