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iPhone 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 a move analysts say gives Apple control of all the core chips in its phones.

"That's where the magic is. When we have control, we are able to do things beyond what we can do by buying a merchant silicon part," said Tim Millet,

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