I've posted a brief overview that explain briefly on the concept and some common terminology explanation of WCF. The tutorial aims to provide a basic and quick insight and understanding of WCF. If you're interested to find out a bit more about Windows Communication Foundatin and wanted to have a quick overview, this article should be able to provide you with some basic answers to the immediate questions.
In the light of preventing "excessive information overflow", the article is written and designed to be as brief as possible, just so as to get you going with WCF. If you want to have an in-depth read on WCF, you can read them here.
You can read it here
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