If you are daring, resourceful, ingenious, confident, and have a penchant for all things novel and technical, then congratulations — you have all that it takes to be the next Bill Gates (Microsoft) or Michael Dell (Dell) or Larry Ellison (Oracle). That is right! These most successful and enterprising impresarios of today hit gold by revamping start-up companies into international IT powerhouses. No wonder, they are idolized as true heroes and are an inspiration to many. Agreed, these outrageously wealthy, self-made, go-getter entrepreneurs did not come out of the same blueprint. But thanks to their innovation, dedication and never-say-never attitude, today they take up a coveted place among the world achievers. These are the Americans entrepreneurs who believed that everything is possible once you set your heart to it and never took "no" for an answer. And while there is no foolproof guide to become a successful software entrepreneur like them, trailing the timeline, trivia and interesting facts on America's famous IT & software entrepreneurs in the biographies below might fire up your ambition to some extent.