What is a node type?

[mommie_geek]

My boss has given us the assignment of learning about nodes and node types (sort of a self training exercise, I guess). I don't want anyone here to give me the definition, but I would be really grateful if someone could point me in the direction of websites with explanations and information. I've found a few, but they are all pretty advanced, and I'm looking for the more simplistic definitions before moving onto the advanced.

TIA

 

[calabash]

You didn't mention the scale of your target project, but here is a good link

http://www.walruscomputers.com/tomes/Tomes_Volume_Six-Networking_Tutorial.htm