Jack Dorsey (born November 19, 1976) is an American software architect and businessman widely known as the creator of Twitter and as the founder and CEO of Square, a mobile payments company. In 2008, he was named to the MIT Technology Review TR35 as one of the top 35 innovators in the world under the age of 35. Dorsey grew up in St. Louis, Missouri, and by age 13, he had become interested in dispatch routing. Some of the open source software he created in the area of dispatch logistics is still used by many taxi cab companies. He went to high school at Bishop DuBourg High School and attended the Missouri University of Science and Technology before subsequently transferring to New York University, where he first conceived the idea for Twitter. While working on dispatching as a programmer he later moved to California. In Oakland in 2000, Dorsey started his company to dispatch couriers, taxis, and emergency services from the Web.
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