TABS AHOY: Getting exact numbers for device adoption is an imprecise science. But according to Education Market Research, there are "approximately 13.2 million computing devices in K-12 schools, composed mainly of desktops (4.7 million), laptops (3.9 million), and tablets (2.3 million)." Chromebooks, it finds, "appears" to have surpassed the 1 million mark. And tablet spending is expected to increase by 8.6% during the 2014-2015 school year. These numbers are deduced from a survey conducted in Spring 2014. Further findings and insights are available in the full report--for $1500.