Digital signage systems and related equipment, namely, electric signs, electronic displays for displaying advertisements and public service announcements, changeable electronic advertising and message display units with stand-alone capabilities, multi-networking capabilities, and remote connectivity, liquid-crystal displays, light emitting diode displays, electronic paper displays for displaying advertisements and public service announcements, optical fiber array displays, changeable electronic displays for displaying advertisements and public service announcements, changeable electronic advertising and message display units, portable and compact power supply units for powering digital signage systems, surrounds and supporting structures for all of the foregoing sold as integrated components thereof, and portable and compact computing devices for operating all of the foregoing sold as components thereof; wired and wireless networking systems for digital signage systems and changeable electronic advertising and message display units, namely, computer hardware and software for operating electronic displays and digital signage systems, computer hardware and software for administration and operation of computer local area networks, computer networking hardware and network operating software, and telecommunications and networking computer hardware for transporting and aggregating audio, data, and video communications across multiple network infrastructures and communications protocols

OPERATION AND ADMINISTRATION OF DIGITAL SIGNAGE SYSTEMS FOR OTHERS, NAMELY, PROVIDING ADVERTISING SPACE BY ELECTRONIC MEANS AND GLOBAL COMPUTER INFORMATION NETWORKS; RETAIL STORE SERVICES FEATURING EQUIPMENT FOR DIGITAL SIGNAGE SYSTEMS