http://www.techradar.com/news/digital-assistants-siri-vs-google-vs-alexa

Forget typing into a keypad or pushing buttons on a phone to make calls, access apps or play music. Thanks to the latest voice activated technology you can now do all this and more, simply by talking into a device - whether that’s a mobile phone, a computer or one of the latest digital assistants.

New products are emerging all the time that will enable you to control every aspect of your home – from its heating to its lighting, and from its entertainment to its security – simply by using your voice.