Steve Jobs and Steve Wozniak had been friends for some time, having met in 1971, when their mutual friend, Bill Fernandez, introduced 21-year-old Wozniak to 16-year-old Jobs. They began their partnership when Wozniak, a talented, self-educated electronics engineer, began constructing boxes which enabled one to make long-distance phone calls at no cost, and sold several hundred models. Later, Jobs managed to interest Wozniak in assembling a computer machine and selling it.