Summary

We should by now have a basic understanding of the main technologies and programming languages used by a Joomla! site. Enough at least to allow us to tell the difference between a CSS file and a JavaScript file, between PHP and HTML, and so on.

It is strongly recommended that anyone serious about his or her site take their studies of these technologies further and builds up their skills with them. Even if they themselves are not going to do most of the development, perhaps they have hired developers for example, understanding these things will still make communicating with those developers much easier.