WEB PROGRAMMING OVERVIEW

Web programming languages are usually classified as server-side or client-side. Some languages, such as JavaScript, can be used as both client-side and server-side languages, but most Web programming languages are server-side languages.

The client is the Web browser, so client-side scripting uses a Web browser to run scripts. The same script may produce different effects when different browsers run it.

A Web server is a combination of software and hardware that outputs Web pages after receiving a request from a client. Server-side scripting takes place on the server. If you look at the source of a page created from a server-side script, you'll see only the HTML code the script has generated. The source code for the script is on the server and doesn't need to be downloaded with the page that's sent back to the client.