What is JAMMA?

Short for apan Japanese Amusement Machinery Manufacturers Association, JAMMA is an association of arcade manufacturers Atlus, Capcom, Konami, Namco, Sega, Taito and Tecmo.  They started out as a rights movement in 1981, but by 1989 it turned into an organisation that established a set of standards for arcade cabinets, which included standard connectors and video displays.  Chances are, when you've played an arcade machine you have played one built to JAMMA standards, as it allowed distributors and operators to swap out boards without lugging around entire cabinets.

MTW