viewsonic interactive screen.Czech Republic NCR interactive LCD whiteboard is not only a whiteboard, high-definition television and large-screen touch the computer, instead of the mouse and keyboard can be close by finger touch, can also be remotely controlled through a wireless computer mouse, keyboard, easy to use It is flexible, makes people work, study, live, entertain, intelligent, convenient, and fun . It integrates high-definition liquid crystal display, precise screen positioning system, multimedia fast processing system, digital mapping system, remote data conference system, and Audiovisual entertainment systems, etc., provide an efficient information platform for interactive communication and decision-making for interactive communication among multiple groups of people, suitable for use in conference rooms, classrooms, exhibition halls and business control rooms . I. Specifications of interactive LCD whiteboards : DXDiTa9E3d