Steve Jobs, the American businessman and technology visionary who is best known as the co-founder, chairman, and chief executive officer at Apple Inc, was born on February 24, 1955. His parents were two University of Wisconsin graduate students, Joanne Carole Schieble and Syrian-born Abdulfattah Jandali. They were both unmarried at the time. Jandali, who was teaching in Wisconsin when Steve was born, said he had no choice but to put the baby up for adoption because his girlfriend's family objected to their relationship. The baby was adopted at birth by Paul Reinhold Jobs (1922-1993) and Clara Jobs (1924-1985). Later, when asked about his "adoptive parents," Jobs replied emphatically that Paul and Clara Jobs were my parents." He stated in his authorized biography that they 'were my parents 1,000%. Unknown to him, his biological parents would subsequently marry (December 1955) have a second child, novelist Mona Simpson, in 1957, and divorce in 1962. The Jobs family moved from San Francisco to Mountain View, California when Steve was five years old. The parents later adopted a daughter, Patti. Paul was a machinist for a company that made lasers and taught his son rudimentary electronics and how to work with his hands. The father showed Steve how to work on electronics in the family garage, demonstrating to his son how to take apart and rebuild electronics such as radios and televisions. As a result, Steve became interested in and developed a hobby of technical tinkering. Clara was an accountant who taught him to read before he went to school.