GTCO

GTCO Corporation is a corporation producing interface devices including digitizers, graphics tablets and audience response systems.GTCO was established in 1975 in Rockville, Maryland by two graduates of the Stevens Institute of Technology in Hoboken New Jersey. In 1985, GTCO moved to its current location in Columbia, Maryland. GTCO Corporation patented the first electromagnetic digitizer. In 1995 GTCO acquired the assets of Science Accessories Corporation, who manufactured a line of Sonic (Sound) type Digitizer.