A motivated capable learner such as yourself could easily answer that question by browsing and searching the huge information resource that is Moodle.org. Go Sam go!
I thought the question was whether Moodle is a "thing" 
Here is a Wikipedia article explaining what Moodle is.
http://en.wikipedia.org/wiki/Moodle
cheers
Daryl
http://www.learnscape.com.au
http://en.wikipedia.org/wiki/Moodle
cheers
Daryl
http://www.learnscape.com.au