The adopted son of a Mountain View, Calif., machinist, Steve Jobs showed an early interest in electronics and gadgetry. While in high school, he boldly called Hewlett-Packard co-founder and president William Hewlett to ask for parts for a school project. Impressed by Jobs, Hewlett not only gave him the parts, but also offered him a summer internship at Hewlett-Packard. It was there that Jobs met and befriended Steve Wozniak, a young engineer five years his senior with a penchant for tinkering.