Google has predicted its dominant web search engine will mean it will beat Apple in the race to turn the smartphone and other devices into intelligent, voice-controlled personal assistants.
The rival technology giants are investing hundreds of millions of dollars in their competing services, Google Now and Siri, and the field is expected to be a major battleground for their mobile operating systems, Android and iOS.
Both have teams of engineers working to crack the problems of making machines understand complex spoken questions and answer them in natural sentences. Google has said its goal is to create a service comparable to the computer of the Starship Enterprise in Star Trek that will become a new way to interact with the web and myriad other apps.
Google Now aims to anticipate what people will want from their smartphone by reading their calendar and emails, and analysing their location. On an overseas trip it will serve up flight information based on booking confirmation emails.
Scott Huffman, the Google engineering director leading the effort, said the company had a headstart on its competition because the way it calculates the rankings of search results gives its systems an understanding of the meaning of how language is used in the real world.