37 installation and repair of computerized in-store advertisement sampling apparatus, consisting of a computer, computer operating programs, optical disks, television monitor, electronic keypad, and product display area, video monitors; video playback devices; bar code scanners; audio systems, namely amplifiers, speakers and audio playback devices; headphones; LED (Light-Emitting Diode) display panels; electronic keypads, computer software, namely operating systems; computer hardware and peripherals, namely computers, computer monitors, computer pointing devices, and computer printers; digital and analog media, namely computer disks and files, CD-ROMs, and laser disks,