{HEAD ~ An interactive display system} in accordance with the principles of the present invention includes {TAIL ~ an output device}, such as a cathode ray tube , liquid crystal display , or other display device and a display controller 
{ HEAD ~ An interactive display system } in accordance with the principles of the present invention includes { TAIL ~ an output device } , such as a cathode ray tube , liquid crystal display , or other display device and a display controller
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH