Some technical informations on hardware I want to share

	Cartdrige 101 All you need to know about cartdrige and, mainly, the PCB and chips inside
	Input 101 all you want to know! How does a joypad 3 buttons work ? How to read Sega mouse input ? How to mod a justifier ?
	Backup systems list of known 'professional' backup systems
	Homebrew cartdrige reader/writer list of known 'home-made' cartdrige reader and/or flash card writer