Sometimes the hardest parts of this hobby aren't the actual modeling and operating projects but just learning the lingo. Nowhere is this more true than with Digital Command Control. Boosters and decoders and CV's - you may think you need a degree in computer science to install DCC but nothing could be further from the truth.
This glossary of DCC terms should help clear up many of the questions surrounding the technology. And once you know what you're talking about you'll ready to move ahead with confidence.