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3. Michael Dell – worth over $19.1 billion
Michael Dell, 48, the chairman and CEO of Dell is a University of Texas dropout who is worth $19.1 billion. He started making his own computers in college when the personal computer was still in its infancy stage. Dell started selling directly to customers, and as his accounts outside his school began to rise, he dropped out to focus on his business efforts. In his first full year of business, he had $6 million in sales, and became the world’s largest PC maker by 2001.
