The 25-year Apple veteran, who is a mechanical engineer by training, will take over from Tim Cook in September. Apple on Monday (Apr 20) named insider John Ternus as its next chief executive officer , tasking the longtime hardware chief with steering the company after Tim Cook, as the iPhone maker prepares for industrywide shifts driven by artificial intelligence (AI). The leadership change marks the end of an era at one of the world's most iconic companies, just as rivals bet on products that