Presentation apparatus for capturing and transmitting visual images by using CCD (charged Coupled Device) camera or CMOS (Complementary Metal Oxide Semiconductor) camera; document cameras; LCD (liquid crystal display) monitors; LCDs (liquid crystal displays); touch screens; touch panels; LCD projectors; video projectors; computer whiteboards; touch screen pens; computer styluses; amplifiers; microphones; loudspeakers; TV monitors; audio mixers; digital video signal processors; projection screens; digital video recorders; remote controls for LCD projectors, video projectors, computer whiteboards, amplifiers, TV monitors, digital video signal processors, projection screens, digital video recorders, document cameras, presentation apparatus for capturing and transmitting visual images; electronic hubs with audio and video recording functions for connecting digital audio and video cables; matrix switchers with audio and video recording functions for digital audio and video signals; computer network hubs, switches and routers; tablet computers; data processing apparatus; audio interfaces; interfaces for computers; LCD (liquid crystal display) touch panels for computers; computers; recorded computer software for saving and viewing digital images and video; downloadable computer software for saving and viewing digital images and video; computer peripheral devices; compact discs featuring music; downloadable music files; exposed cinematographic films; downloadable image file containing artwork, text, audio, video, games in the fields of elementary education; pre-recorded video discs featuring movies, music, games, sports, entertainment and elementary education; downloadable electronic publications in the nature of books, magazines, manuals, pamphlets and brochures in the field of movies, music, games, sports, entertainment, elementary education; electronic publications, namely, books, magazines, manuals, pamphlets and brochures featuring movies, music, games, sports, entertainment and elementary education recorded on computer media