| NOMENCLATURE |
LIGHT PEN, CATHODE RAY TUBE DISPLAY. A PHOTOSENSITIVE DEVICE USED TO
PRODUCE AND MAGNIFY VISIBLE LOCATION INDICATORS (CURSORS) AND ALSO TO
DRAW OR WRITE WHEN USED WITH CRT DISPLAY TYPE MODULES. IT WAS DESIGNED
FORTHE PURPOSE OF PROVIDING A CONVENIENT MEANS OF COMMUNICATING WITH A
LARGE SCATTERED AUDIENCE, IN THAT THE USER OF THIS DEVICE REDUCES
DISTRACTIONS BY REMOVING SELF AND PHYSICAL POINTERS FROM THE DISPLAY.
TYPICAL USES ARE SUCH AS IN THE MEDICAL FIELD WHERE INDUSTRY BY NEWS
COMMENTATORS; IN THE FIELD OF EDUCATION; PARTICULARLY BY INSTRUCTOR ON
EDUCATIONAL TV, ETC.
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