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At the end of last quarter, Amazon said it will start breaking out?the unit’s?financials in Q1 of this year. Before, it was?lumping?AWS?results?under an “other” category for North American sales. That total category generated .67 billion in revenue during the fourth quarter, but it?also included advertising services and co-branded credit card agreements.

At the center in Xuhui, for example, a 24-hour self-service hall equipped with computers, photography rooms and archive-saving machines, was opened to the public in December 2018.

At present, there are wafers with diameters of 4, 5, 6 and 8 and 12 inches. The 12-inch wafers take up the majority of the market. Arizona-based global semiconductor market research firm IC Insights predicted that 12-inch wafers will take up 71.2 percent of the global market by 2021, with a compound annual growth rate of 8.1 percent.

At this year's expo, there has been a rise of small-and medium-sized companies among the purchasing groups. Private companies accounted for 67 percent of the total registered firms, said Sun Chenghai, deputy director of the CIIE bureau.

At the US-China AI Tech Summit held Friday in Silicon Valley, California, the tech community in the US birthplace of hi-tech innovation agreed that the AI technology will give a big push to the future mobility characterized with self-driving technology and electrical vehicles, and change the way of public transportation.