Modern Titans of Tech

Facebook, Twitter, Google, iPhone— they're the names of technologies so pervasive in our 21st century lives that we've started using them as verbs. Behind these technologies are individuals whose ingenuity and enterprising spirit have profoundly changed our lives. Far from being computer nerds, these tech geniuses are billionaire celebrities, household names and the subjects of hit movies. From Steve Jobs of Apple to Mark Zuckerburg of Facebook, here are the most famous modern titans of tech.