Walter Isaacson’s next book is a history of the digital age. (Scott Eells)

We reported last week that Isaacson, whose book about Apple co-founder Steve Jobs has been a mega-bestseller, resigned as chairman of the Broadcasting Board of Governors to spend more time on a “big writing project.” How big? We hear that his next book will chronicle the history of the digital age, from the famous Ada Byron Lovelace to the present.

Lovelace, who died in 1852, was the only legitimate child of the poet Lord Byron. She’s sometimes called the world’s first computer programmer.

Isaacson, who’s head of the Aspen Institute, told the White House Friday that he was stepping down from his position as chairman of the BBG, the entity that oversees government radio and television stations including the Voice of America, Radio Free Europe and Radio and TV Marti.