Square, run by billionaire Twitter co-founder Jack Dorsey, hopes to make cash registers obsolete.
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Jack Dorsey invented Twitter out of his conviction that cities can work more efficiently.
Additional competition for PayPal will come from Square, the brainchild of Twitter founder Jack Dorsey.
What do Twitter co-founders Jack Dorsey and Christopher "Biz" Stone have in common with Thomas Edison?
Of course, design is a focus for Square, which starts from CEO Jack Dorsey.
Jack Dorsey, Square cofounder and CEO, unveiled the new hardware at an event in San Francisco Tuesday.
In March, Mr. Costolo brought back Jack Dorsey, Twitter's creator and CEO of mobile-payments company Square Inc.
Twitter founder Jack Dorsey became a billionaire before 40, and worked 80-hour weeks to get there.
Meanwhile, co-founder Jack Dorsey is still chairman at Twitter, while he is also CEO at payments start-up Square.
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Jack Dorsey, the man behind Silicon Valley darlings Twitter and Square, is reportedly dating British supermodel Lily Cole.
Square, a startup led by Twitter inventor Jack Dorsey, is also trying to rework the point-of-sale process.
Twitter was started when Jack Dorsey sent an SMS message at 9:50pm PT on March 21, 2006.
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On Tuesday, CEO Jack Dorsey unveiled the Square iPad stand, which the company hopes will replace traditional cash registers.
He breaks from work to dine with Jack Dorsey, the chief of Facebook rival Twitter and payment service Square.
He currently sits on the board of Jack Dorsey's mobile payment company, Square.
Square's chief executive and co-founder, Jack Dorsey, was briefed by Square's attorneys on the situation, along with Mr. Rabois.
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Square's chief executive and co-founder, Jack Dorsey, was briefed by Square's attorneys on the matter, along with Mr. Rabois.
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Square was co-founded by Twitter creator Jack Dorsey and Jim McKelvey, and was introduced in early 2010.
Jack Dorsey is the co-founder of Twitter and co-founder and CEO of Square.
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The group that had the least trouble answering this question were our highest-profile tech speakers Jack Dorsey, Steve Case, and Tim Draper.
Among the speakers: AOL founder Steve Case, Draper Fisher Jurvetson venture investor Tim Draper and Square and Twitter founder Jack Dorsey.
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The original inspiration for Square came to Jack Dorsey in 2009.
But the most trenchant comment came, not coincidentally, from the youngest and newest member of this billionaire cavalcade, Jack Dorsey, of Twitter and Square.
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"We're proud that Starbucks chose Square, as we share the value of always putting customers first, " said Jack Dorsey, co-founder and CEO of Square.
Twitter cofounder and executive chairman Jack Dorsey will moderate a conversation between President Obama and Americans across the country about the economy and jobs.
At 14, Jack Dorsey became fascinated with dispatch routing and wrote open source software that is still used by many taxi companies today.
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Then, come back to watch the President respond to your questions in a live event moderated by Jack Dorsey, Twitter co-founder and Executive Chairman.
Conway is leading the Causes.com campaign along with other big names including Ryan Seacrest, Jack Dorsey, Britney Spears, MC Hammer, Suze Orman and Tyler Florence.
Jack Dorsey is a latter-day legend among entrepreneurs, and no wonder.
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Square, cofounded by Twitter cofounder Jack Dorsey, also recently announced that it hired former Goldman Sachs and Salesforce.com executive Sarah Friar as chief financial officer.
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