Jack Dorsey

Jack Patrick Dorsey (born November 19, 1976) is an American software developer and business person, widely known as the creator of social networking service Twitter. He is also the founder and CEO of Square, a mobile payments company. In 2008, he was named as one of the top 35 innovators in the world under the age of 35.

He worked as a model.Jack Dorsey Twitter (September 3, 2013).Jack Dorsey Twitter (May 15, 2015).Jack Dorsey Flickr (July 13, 2006).Jack Dorsey Flickr (July 13, 2006).Jack Dorsey Flickr (July 13, 2006).

Early life
Dorsey was born Jack Patrick Dorsey in St. Louis, Missouri,Profile Twitter founders: Jack Dorsey, Biz Stone and Evan Williams. Telegraph. Retrieved on January 14, 2014.Taste of St. Louis first major event to use Square : Business. Stltoday.com (September 29, 2010). Retrieved on January 14, 2014. the son of Tim and Marcia (née Smith) Dorsey.Jack Dorsey, creador de twitter: 'En 140 caracteres la gente se siente más libre al escribir' | CIENCIA&TECNOLOGÍA . latercera.com. Retrieved on January 14, 2014.The Virginian-Pilot Archives . Nl.newsbank.com (November 26, 2009). Retrieved on January 14, 2014. He is of English, Irish, and Italian descent.Jack Dorsey Believes That Eating Purple Food Makes You Healthier. Vanity Fair (March 21, 2012). Retrieved on January 14, 2014. His father worked for a company that developed mass spectrometers and his mother was a homemaker.

He was raised Catholic, and his uncle is a Catholic priest in Cincinnati. He attended the Catholic Bishop DuBourg High School. In his younger days, Dorsey worked occasionally as a fashion model.

By age fourteen, Dorsey had become interested in dispatch routing. Some of the open-source software he created in the area of dispatch logistics is still used by taxicab companies. Dorsey attended the University of Missouri–Rolla for two-plus years (1995–97) before transferring to New York University, but he dropped out in 1999, one semester short of graduating. He came up with the idea that he developed as Twitter while studying at NYU.

 Career 
While working on dispatching as a programmer, Dorsey moved to California. In 2000, Dorsey started his company in Oakland to dispatch couriers, taxis, and emergency services from the Web. His other projects and ideas at this time included networks of medical devices and a "frictionless service market". In July 2000, building on dispatching and inspired in part by LiveJournal and by AOL Instant Messenger, he had the idea for a Web-based realtime status/short message communication service.

When he first saw implementations of instant messaging, Dorsey wondered whether the software's user status output could be shared easily among friends. He approached Odeo, which at the time happened to be interested in text messaging. Dorsey and Biz Stone decided that SMS text suited the status-message idea, and built a prototype of Twitter in about two weeks. The idea attracted many users at Odeo and investment from Evan Williams, a co-founder of that firm in 2005 who had left Google after selling Pyra Labs and Blogger.

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Category:1976 births
Category:Living people
Category:American billionaires
Category:American Roman Catholics
Category:New York University alumni
Category:Businesspeople from St. Louis, Missouri
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