Earlier this month, it said that digital sales for the past quarter had grown 66 percent. "We cannot just rely on physical stores to reach all of our customers for delivery and and pick-up," said Yael Cosset, Kroger's chief digital officer, in an interview with CNBC. Kroger has more than 2,800 stores across the U.S., under banners like Fred Meyer, Ralph's and Harris Teeter. Nuro, founded in 2016 by Google engineers, is an autonomous car company built explicitly for the business of transporting goods. That means its cars are slimmer and designed differently than ones meant to carry people.

Analysis If you are reading this article, it's probably that you wonder why to associate intelligence with unmanned cars. After all, it's only codes that programmers from Google, Tesla or Uber or a smaller startup wrote. Even if it were possible to make cars more intelligent, why bother about it? Aren't they already operating quite well with embedded personal computers (PCs)? You might think they are probably using PCs with a beefed-up version of their multicore processors for extra raw processing power.