This article details the spread and scope of large-scale 1:1 computing initiatives around the world. What follows is a review of the existing literature around 1:1 programs followed by a description of the large-scale 1:1 database. Main findings include: 1) the XO and the Classmate PC dominate large-scale 1:1 initiatives; 2) if professional development was conducted within a 1:1 initiatives, it was done at the onset of the project by venders of the hardware; 3) funding for 1:1 initiatives appears to be provided initially but not as a reoccurring expense.