42 Design and engineering of parking control, building access control, and self-storage systems, each comprising one or more of the following goods, automated parking security gates, parking access ticket machines, parking pay stations in the nature of customer self service electronic checkout station for point of sale, computerized controllers, stand, alone electrical controllers, access cards, access card readers, biometric based access readers, keypads, cameras, video equipment in the nature of video cameras and monitors, computer hardware, computer software; technical support for parking control, building access control, and self-storage systems, each comprising one or more of the following goods, automated parking security gates, parking access ticket machines, parking pay stations in the nature of customer self service electronic checkout station for point of sale, computerized controllers, stand alone electrical controllers, access cards, access card readers, biometric based access readers, keypads, cameras, video equipment in the nature of video cameras and monitors, computer hardware, and computer software; troubleshooting of computer hardware and software problems; installation and repair of computer software for parking control, building access control, and self-storage systems, each comprising one or more of the following goods, automated parking security gates, parking access ticket machines, parking pay stations in the nature of customer self service electronic checkout station for point of sale, computerized, controllers, stand alone electrical controllers, access cards, access card readers, biometric based access readers, keypads, cameras, video equipment in the nature of video cameras and monitors, computer hardware, and computer software