I'm afraid I've been bitten by the retro gaming bug. This seems like a good place to scratch that itch, and of course I'll try to contribute where I can, though my knowledge is limited. I hope I can be of some use eventually!
Welcome to the board! If you want to find out about this stuff this is a very good place to do it - you can ask pretty much any question and someone will almost always know the answer. Most of the time, it's even right! (and if it isn't you can be sure someone else will correct it very soon).