Apple CEO Tim Cook is stepping down and is expected to succeed by John Ternus. Cook, who has been CEO since 2011, helped grow Apple into a $4 trillion company and oversaw some of its most successful product launches. His most notable products include the AirPods, the first wireless earbuds from a decade ago, and the first flagship in the industry to ship without a headphone jack. The first smartwatch was launched in 2014 and continues to provide consistent innovative feature updates. The Apple Watch was introduced in 2015 with heart rate tracking and deep Apple ecosystem integration. The company's transition to silicon sales was successful, with significant energy efficiency and a shift towards the M1 and silicon chip architecture. The Mac and Macbook lineages have always been popular but not widely known for their performance.