Audio and video projectors and digital displays; interactive panel displays; electronic displays, namely, digital signage; Communication and networking software and applications for networking computing devices, mobile computing devices, display devices and multi-media devices via a computer network; Software for electronic multimedia and data-video projector control, service maintenance, and operation via a computer network; Apparatus and systems for transmitting, reproducing, projecting images and image data, namely, digital projectors, front projectors, rear projectors, televisions, home cinema/theatre projectors, business presentation projectors; accessories and components for use with audio and video projectors and image displays, namely, lamps, networking adapters, wireless adapters, adapter cables, audio cables, audio video cables, video cables, power cords, remote controls, filters; mobile carts for display device; projector mounts; projection screens, namely, portable screens, pull down screens, wall-mountable screens, home-theatre screens; carrying cases for projectors, namely, hard cases and soft cases; lens caps; lenses, namely, wide-angle projection lenses, long throw projection lenses, short throw projection lenses, zoom lenses; electronic publications, namely, newsletters and instruction manuals and help files, product pages and updates featuring projectors and televisions and accessories therefore recorded on computer media; and downloadable electronic publications in the nature of an online newsletter, instruction manuals and help files, product pages and updates in the field of projectors and image displays and presentation methods and systems; interactive touch display screens; televisions; cameras; computer keyboards