Then, in 1980, the district attorney of San Mateo County, California, sued my father for child-support payments. My father responded by denying paternity, swearing in a deposition that he was sterile and naming another man he said was my father.
I was required to take a DNA test. The tests were new then, and when the results came back, they gave the odds that we were related as the highest the instruments could measure at the time: 94.4 percent. The court required my father to cover welfare back payments, child-support payments of $385 per month, which he increased to $500, and medical insurance until I was 18. The case was finalized on December 8, 1980, with my father’s lawyers insistent to close. Four days later Apple went public and overnight my father was worth more than $200 million.