Cook made his own mark early on in his role as operations leader by cutting Apple’s key suppliers from 100 to 24, and negotiating to get better deals for the company. He also closed warehouses to cut down on inventory stockpiles that were costing the company money.

The CEO behind Apple's storied trillion-dollar run bet big on business customers. The key to maintaining that foothold is AI.

From green bubble stigma to celebrities championing Apple Watches, the Tim Cook era is one of elevated prestige for those owning Apple products.

Tim Cook is stepping down as CEO after a legendary run that helped me fall in love with tech. Goodbye, sweet Tim.