World Wide Web "forms" (or "fill-out forms") are a special kind of Web page, and are the functional equivalent ordinary paper forms we fill out all the time in everyday life, such as an application form. A Web form has spaces for the user to type in information (labels for each input field tell the user what information to fill in, just like on a paper form), and at the end of every form is a button, often labeled "Submit".

When this button is pushed, two things are sent to the Web server: the data the user typed into the form, and an ACTION, which tells the server the name of the program which knows how to process that form's data. The server simply invokes that program and passes the form's data to it, and arranges for the output of that program to be sent back to the browser (ordinarily an HTML stream).

For more information, see the WebCom Forms Tutorial. [an error occurred while processing this directive]