India is investing hundreds of millions of dollars in building up a computer chip industry.

A.I. companies are buying up memory chips, causing the prices of those components — which are also used in laptops and smartphones — to soar.

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

Bees navigate their surroundings with astonishing precision. Their brains are now inspiring the design of tiny, low-power chips that could one day guide miniature robots and sensors.

Semiconductor chips that process light rather than electricity could boost processing speeds and reduce energy use.