Who doesn't know Bill Gates? Gates is best known as the cofounder and former CEO of software giant Microsoft. Consistently, he is ranked among the world's top 10 wealthiest people for over a decade, despite having donated billions of dollars to charity and philanthropic activities.
In fact, Gates might be the most generous man on the earth - he's given away $28 billion already. Currently, he is handling Bill & Melinda Gates Foundation with his wife, Milinda. Photo: Reuters Larry Ellison is the co-founder and CEO of Oracle Corporation - one of the world's leading enterprise software companies. Ellison is crazy about sports, and he even won the America's Cup in 2010 and is bringing the 34th edition of the America's Cup Finals to the San Francisco Bay in 2013. He's been married and divorced four times. Photo: REUTERS Sergey Brin is the co-founder of the search engine giant Google. He was born in Russia and had immigrated to the U.S. at the age of six. Brin has acquired a Ph.D in computer science from Stanford University. As of now, Brin and his wife Anne Wojcicki run The Brin Wojcicki Foundation. Photo: REUTERS Jeff Bezos is the founder, president, and CEO of Amazon.com, the world's largest online retailer. He founded the company in 1994. Initially, Bezos set up Amazon in his garage. Amazon has made him one of the most prominent tech entrepreneurs and a billionaire. Photo: Shannon Stapleton / Reuters Mark Zuckerberg is best known as the co-founder and CEO of the world's No.1 social networking site Facebook. Last month, Facebook filed for going public and analysts predicted a $100 billion valuation. Photo: Reuters Michael Dell is the founder and CEO of the Dell. Dell started an informal business originally from a dorm room while he was a freshman pre-med student at the University of Texas at Austin. Michael and his wife Susan Dell established the Michael and Susan Dell Foundation in 1999, which focuses on children’s causes. Photo: REUTERS Steve Ballmer became the CEO of Microsoft after Bill Gates stepped down. Ballmer dropped out of a Stanford M.B.A. program, and joined Microsoft in 1980 under Bill Gates' persuasion. He became Microsoft's 30th employee and the first business manager hired by Gates. Photo: Reuters Paul Allen is best known for co-founding Microsoft with Bill Gates. Thanks to rising Microsoft share price, Allen has become a billionaire. Allen was also ranked the most generous living American by the Chronicle of Philanthropy last year. Photo: REUTERS Robin Li is the co-founder of China's most popular search engine Baidu. He is also the richest man in mainland China. Photo: Reuters Laurene Powell Jobs, Steve Jobs' widow, inherited the fortune of the creative genius after he passed away on Oct. 5, 2011. They got married in 1991 in Yosemite. The couple had three children together. Photo: Reuters James Goodnight is the CEO of SAS Institute. According to Forbes, the company is best known for "worker-friendly policies, wellness programs, on-site daycare centers and free snacks. " Goodnight is recognized as the richest man in the state of North Carolina and one of the richest in the world. Photo: Reuters Hasso Plattner is a cofounder of software giant SAP AG. He stepped down from the post of CEO in 2003 after 30 years of service. Now he is the current chairman of the Supervisory Board of SAP AG. Plattner has strong enthusiasm for sports. Photo: Reuters Eric Schmidt, the former Google CEO, stepped down in 2011 after 10 years service. Interestingly, he was also a former member on the board of directors for Apple. Schmidt has established the Eric Schmidt Family Foundation, which focuses on the issues of sustainability and the responsible use of natural resources. Photo: Reuters Pierre Omidyar is the founder and chairman of the eBay. He is a French-born Iranian, who migrated to the U.S. with his family at the age of six. Omidyar and his wife Pam are well-known philanthropists. The couple have donated over $1 billion to programs spanning a range of causes, from poverty alleviation to human rights and disaster relief. Photo: Reuters Hiroshi Mikitani is the outspoken chairman and chief executive of Japanese online shopping mall operator Rakuten, which is one of the world's largest Internet service companies. Rakuten has donated $3.7 million to earthquake relief efforts and raised millions more via Rakuten Securities and digital wallet service Edy. Photo: Reuters Terry Gou is the head of Taiwan's Foxconn - Apple's largest product manufacturing partner. Though the company has made a fortune by partnering with the tech giant, it has also under heavy criticism and pressure, especially after the New York Times published a lengthy report last month, about the terrible working conditions in the factory. Photo: Reuters Dietmar Hopp is one of the co-founders of German software company SAP. After he had served as co-CEO of the company for 10 years and and chairman of the company's supervisory board for five years, he stepped down but still kept 10% of the company's shares after leaving. Photo: Reuters
Technology has not only changed the world, but also has turned a slew of people into tech billionaires. Earlier this week, Forbes ranked the World's Billionaires of 2012 and not surprisingly several tech titans ranked in the list.
Start the slideshow to find out the top 20 tech billionaires who rank among the wealthiest men in the world.
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