During that same period, iOS device shipments dropped to 12.3 percent from 18.4 percent, and mac OS device shipments from 4.8 percent to 4.7 percent. Chrome OS (Chromebook) device shipments continued to grow, hitting 59.8 percent of the US market, up from 57.8 percent.
In the rest of the world, Windows continued to be the dominant education platform with 66.5 percent of device shipments to the education market in Q3 2017, up from 57.1 percent in Q2 2017. Chromebook shipments, comparatively, dropped to 14.4 percent from 24.4 percent. Apple's iOS device shipments also dropped to 6.1 percent, from 8.3 percent between Q2 and Q3 2017.
As Futuresource notes, many of the Chromebooks initially deployed in 2014/2015 will be due for replacement in 2018. Futuresource also notes that 90 percent of Chromebook global sales remain in the US, though international sales for the devices are growing in Northern Europe and some other areas.