Will upgrading frm 2GB RAM to 4GB RAM improve my gaming experience?

That depends on if you are running out of memory now. 2 GB can be a bit tight on some modern systems. Start Task Manage and look on the performance tab, you can see how much RAM you are using at the moment.

Update: you need to keep both banks equal. If you have two 2GB in bank1, then you need to put two 2GB (not one 4 GB) in bank 2.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.