Downloadable and recorded operating software for electronic gaming machines; electric and electronic equipment for use in or with gaming machines, namely, jackpot controllers in the nature of hardware and software for controlling jackpots and related information, microprocessors, meters for recording machine information including money, machine interface cards, central systems network servers, network systems controllers, cash management controllers, illuminated signs, electronic systems comprised of computer networking hardware and associated software for directly or indirectly linking gaming machines; electronic systems comprised of computer networking hardware and associated software for linking interconnected gaming machines and for the control of audio/visual apparatus, equipment and systems related thereto; audio/visual apparatus, equipment and systems, namely, computer networked and non-networked hardware; audio/visual output receivers, video processors, audio amplifiers and audio speakers