Tim Cook, the manager who led Apple to change into a $4 trillion firm and outlined its id within the post-Steve Jobs period, is stepping down as CEO, Apple mentioned on Monday. NCS’s Clare Duffy studies that John Ternus, Apple’s senior vp of {hardware} engineering, will take over as CEO efficient September 1. Cook will change into govt chairman of Apple’s board of administrators and can stay as CEO by way of the summer time to make sure a clean transition, the corporate mentioned.