I’m guessing from the article it’s from Gartner…or maybe this ABI Research reference:
Google’s Chromebooks – manufactured by Samsung, Lenovo, Hewlett-Packard and Acer – topped 2.1 million unit sales in 2013 and are expected to climb to 11 million annually by 2019.
This surge matches the interest we saw in a joint study with Spiceworks. While the overall shipments are low relative to the behemoths of iOS/Android and Windows, there’s growth in Chromebook land.