Although IDC doesn't usually separate Chrome OS or Chromebooks from the PC category, the group did confirm the numbers to The Verge, saying "Chrome OS overtook Mac OS in the US in terms of shipments for the first time in 1Q16." The firm noted that Macs sold about 1.76 million units in the first quarter of 2016, meaning Chromebooks sold somewhere in the neighborhood of 2 million units or more. Overall, however, PC shipments are on the decline.

IDC also pointed out a large reason for the Chromebook's success: the low-cost devices have been a hit with K–12 schools in the United States, even though the company is still looking to break into consumer and business markets. But, in that regard, Google may have tipped its hand at this week's I/O developers conference, where it showed off plans to make Chrome OS compatible with over a million Android apps already in the Google Play Store.

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