The agreement with the start-up Cerebras is the latest in a series intended to expand the A.I. company’s computing power.

PHOENIX – The computer chip factories rising from an empty expanse of the Sonoran Desert test the concept of immensity. The complex is under construction across 1,149 acres, an area larger than New ...

The recipe for a computer chip of the future may read something like this: Take some wires. Add DNA. Stir. In an advance that might provide a practical method for making molecular-size circuits, the ...