Who is John Ternus, the long-time Apple executive replacing Tim Cook?

John Ternus will become Apple's 8th CEO in September. Over the last 25 years at Apple, Ternus has become a key architect of the tech giant's robust product pipeline, managing hardware engineering for iPad, AirPods and recent iPhone models. He has also played a significant role in Apple's Silicon chip program as it transitions away from Intel. When Ternus takes the reins this September, he faces a significant obstacle: revamping the company's struggling artificial intelligence strategy.