Jack+Dorsey



=__Personal Life__= He was born November 19, 1976. He grew up in St. Louis, Missouri. Dorsey became interested in computers and communications when he was young in high school. When Dorsey was 15, He wrote dispatch software that is still used by some taxicab companies today. Dorsey went to University of Science and Technology, but then he transferred to New York University. Dorsey eventually dropped out of college like Bill Gates and Steve Jobs and started his own company in 2000, where he sold dispatch software through the Web. He eventually approached Odeo to pitch the concept of "Twitter". Dorsey and the owners of Odeo, Biz Stone and Evan Williams, started a company called Obvious, which later turned too Twitter. Within two weeks, Dorsey had built a simple site where users could instantly post short messages of 140 characters or less which is known as "tweets". On March,21,2006, Dorsey posted the worlds first tweet,"just setting up my twttr." Dorsey, however, had set his sights on other projects. He became an investor in the social networking company Foursquare and launched a new venture, Square, which allows people to receive credit card payments through a tiny device plugged in to their mobile phone or computer. Twitter may have already revolutionized the way that people communicate, but Dorsey isn't done yet. "In terms of technology, we're going to see a better and more immediate experience around the everyday things we do in life," Dorsey said.

=__Twitter__= Twitter was used as a tool for selfcentered people or celberties too update their life to the universe. An update is limited by 140 characters and can be posted through three methods: web form, text message, or instant message. The company has been busy adding features to the product like Gmail import and search. By 2010, Twitter had more than 105 million users who together tweeted some 55 million times a day.