David Canfield Smith is an American computer scientist best known for inventing computer user interface icons.Smith was born in Roanoke, Virginia on March 29, 1945. Smith graduated from Chillicothe (Ohio) High School in 1963 and was inducted into the Chillicothe High School Distinguished Alumni Hall of Fame in 2007Smith attended Oberlin College, where he earned a Bachelor of Science degree in mathematics in 1967. During the last semester of his senior year, Smith realized he didn't want to pursue a career as a mathematics professor. Smith gained interest in the field of artificial intelligence (AI) after reading Computers and Thought by Edward A. Feigenbaum and Julian Feldman. In his eyes, AI was the future of computing and he wanted to be involved. Wikipedia