What Pokemon games can I trade between?

I have Pokemon Ruby, Pikachu Yellow, Crystal, and Silver. Just wondering which ones I can and can't trade between, if any. Also, what I need to do in the game to make it possible to trade, I already have the link cable and multiple gameboys.What Pokemon games can I trade between?
This should make it simpler.



GBC games cannot trade to any other console.



GBA can only transfer to DS (but it's a one way trip)What Pokemon games can I trade between?
srry but u can not trade between pokemon ruby, and the gameboy color versions.This is what the pokemon company didnt want to do till heartgold and soulsilver comeout.What Pokemon games can I trade between?
You can trade between yellow, crystal, and silver. But you can't trade any with Ruby. To trade you have to talk to someone can't remember who, and get them to open up the trade above the pokemon center. You meet this person so far into the game, and is written into the story line, so assuming you play the game out you should have it. To trade, both pokemon games in seperate gameboys have to be at the link station at the pokemon center, connected of course by the link cable. If you have all this it should work.