In this articleAAPLGOOGLiPhone Air is the big newcomer among Apple's latest lineup that went on sale Friday, but inside the slim phone's raised plateau is another new piece of hardware that signals a renewed focus on artificial intelligence. Apple's custom A19 Pro chip introduces a major architecture change, with neural accelerators added to each GPU core to increase compute power. Apple also debuted its first ever wireless chip for iPhone, the N1, and a second generation of its iPhone modem, the C1X. It's ...