at the international consumer electronics fair underway in berlin, the smart home has already arrived>> even the classiest cook can chill out in this kitchen. a camera that checks what is in the fridge, and projects recipe suggestions under the countertop , like how to make the perfect roast. the stove opens automatically, taking things from there. a heat table keeps the chocolate brownies warm and gooey until it is time for dessert. it is a kitchen that takes culinary worries away. it even lets the dishwasher. in the future, nearly everything will be connected to the internet through voice control -- the door, the tv, the lights, and the oven. >> turn on the oven. >> ok, turning the oven on. reporter: experts believe it will not be long until four out of five devices are online. >> small, simple machines are taking on more work. theyey enable us to spend our te doing more pleasant activities. even if these gradually become cheaper, we will still be paying a high price for them. on the one hand, they make us dependent on tech giants like amazon, microsoft, and google, that provide the