Yet a DNA test proved Jobs wrong, prompting him to agree to pay about 0 (£300) each month in child support, shortly before the flotation of Apple stock made him millions.
Lawyers who worked with Jobs at Apple at the time later told Miss Brennan that he and his colleagues had celebrated extravagantly after he escaped having to pay more towards his daughter’s upkeep.
In fact, “I had heard that he was moved to the night shift because his co-workers found him so dark and negative,” she writes.
The couple met as pupils at Homestead High School in Cupertino, California, the city in the foothills of the Santa Cruz Mountains in which Apple’s headquarters, at 1, Infinite Loop, remains today.
A few months later, Fenty joined the board of College Track.
At the time he joined the board, Powell Jobs called Fenty “one of our country’s great advocates for education reform.
His sense of urgency and record of accomplishment is unparalleled.” The report, attributing the information to unnamed sources, said the relationship grew into a “budding romance” earlier this year, which coincidentally was about the time Fenty and his wife Michelle announced they were breaking up.
Her invitation to Jobs’s memorial service at Stanford University was withdrawn after she co-operated with Rolling Stone magazine on an article about their relationship.
The book, subtitled A Memoir of My Life with Steve Jobs, has returned the late Apple chief to the pages of America’s tabloids in recent days with extracts published in the New York Post.