How do modules work?

I figured I'd register and share my POV as a "dumb user" just getting into Joomla. Perhaps knowing what I'm seeking will help those doing doc to better understand the end user's needs.

I'm presently troubleshooting why module output isn't showing up where I expect it. I'd like to avoid digging into the source to figure this out, although I'm resigned to possibly having to. Therefore, any doc on the process of rendering module output -- e.g., "Joomla does X to find the modules associated with this content" -- would be very helpful.

Just one n00b's perspective. - PhilipR 21:23, 18 June 2008 (EDT)