Celebrating its 30th anniversary in 2005, GTCO CalComp is a leader in computer input peripherals, with over one million systems installed worldwide. Founded in 1975, GTCO CalComp pioneered the use of pen-based electromagnetic sensing technology currently utilized in the Company's Interactive Whiteboard and Digitizer product lines. In 2004, GTCO CalComp expanded its line of interactive products with introduction of InterWrite PRS, a classroom response system. Our InterWrite products provide interactive hardware and software solutions for education, corporate and government training professionals.

GTCO CalComp Inc, a global company, is headquartered in Columbia, Maryland, with offices in Scottsdale, Arizona; and Munich, Germany. GTCO CalComp maintains distribution partners in over 90 countries, providing solutions to professionals in Education, Training, Presentation, GIS, Computer Aided Design, Construction Estimating and Graphic Arts.