Continuing our top 10 ranges, today we will write about top 10 largest cities in the world by land area.
Recently, representatives of the South Korean company SK Telecom said that China started testing their new service Smart Cart, which involves the use special trolleys in various supermarkets, which are equipped with tablet computers. Thanks to the Smart Cart supermarket visitors can get all the needed information on the availability of goods, their prices, as well as current promotions and loyalty programs. Using a special application this same plate, mounted on a trolley, can communicate with your smartphone and send back the necessary information. The next stage of Smart Cart trials will be held in South Korea in the fourth quarter of 2011.
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