How Does Garbage Collector Works Internally ?

Question

How Does Garbage Collector Works Internally ?

In which sequence objects will get destroyed ? Like Variable, DataSet etc..

How Does Garbage Collector differs in Each Version of .NET framework. I mean till .NET 4.0.

Provide me the Helpful links also.

Any reply will be highly appreciated.

For my first question, I got the answers from recommended article.

Need answers for the other two questions