Be afraid – the machines might be taking over, after a reveal by tech giant Google that makes science-fiction more like science-fact.

The company has announced a plan to use artificial intelligence in computing to help give users "their own individual Google" by becoming personal to them.

At the centre of this is a new personal assistant for around the house that can control, run and organise your entire home using just your voice.

The device, a voice-activated speaker called Google Home, connects to wifi and can control other connected appliances.

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New, more intelligent software is also being launched that focuses on understanding context to answer queries and has been built into the existing Google software that appears on smartphones.

The Google Assistant software will be able to offer proactive suggestions such as restaurant or movie recommendations as users have text message conversations or interact with Google services directly.

Google chief Sundar Pichai said at the I/O developer conference in California: "Computing is poised to evolve beyond just phones. It will be about the context. On phones, in cars, in your homes."

Referencing Google's desire to use artificial intelligence and machine learning to help consumers, Mr Pichai told the conference: "We live in an extraordinary time for computing.

"The real test is whether humans can achieve a lot more with the support of AI assisting them. Things previously thought to be impossible may in fact be possible."