BT has said the cost of smartphones could rise as technology companies buy up semiconductor chips because of the boom in artificial intelligence, putting pressure on supply chains. The telecoms companys chief executive, Allison Kirkby, said she was anticipating shortages as tech firms bought large quantities of memory chips to power the datacentres relied on by AI. Kirkby said: “Its common knowledge that the chip market is under demand by the rise in AI. We are working very proactively with...