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