Today is John Ternus's first day as Apple CEO, taking over from Tim Cook, who led the company for 15 years following the death of co-founder Steve Jobs. Ternus will have his first big test in just over a week, when Apple hosts its "Surprise and shine" event to officially reveal the foldable iPhone Ultra.
Tim Cook's time at the helm of Apple will likely be looked back on as a masterclass in supply chain management, product optimisation and building out Apple's services business. There were some misfires, but over the course of a decade-and-a-half, Cook built Apple into the technological juggernaut it is today.
