At Walmart, technology and innovation are increasingly in the spotlight. In times of change, they now want to reinvent retail with four test markets.
Google's search will become even more intelligent - artificial intelligence will enable completely new functions in the search engine.
With Amazon One, Amazon wants to bring contactless palm payment to its Amazon Go stores and to third-parties.
At this year's Facebook Connect, Facebook unveiled its new Oculus feature "Infinite Office", through which Facebook wants to offer virtual office space to people in the home office.