In this section, we discuss what occurs when a user requests a web page in a browser. In its simplest form, a web page is nothing more than an HTML (HyperText Markup Language) document (with the extension
.htm) that describes to a web browser the document’s content and how to format it.
HTML documents normally contain hyperlinks that link to different pages or to other parts of the same page. When the user clicks a hyperlink, a web server locates the requested web page and sends it to the user’s web browser. Similarly, the user can type the address of a web page into the browser’s address field and press Enter to view the specified page.
In this chapter, we develop web apps using visual development techniques that are ...