Forget windows, folders and boxes that pop up with text. When students in Thailand, Libya, and other developing countries get their $150 computers from the One Laptop Per Child project in 2007, their experience will be <A HREF="http://www.cnn.com/2007/TECH/01/02/hundred.dollarlaptop.ap/index.html">unlike anything on standard PCs.</A> For most of these children the XO machine, as it's called, likely will be the first computer they've ever used. Because the students have no expectations for what PCs should be like, the laptop's creators started from scratch in designing a user interface they figured would be intuitive for children. The result is as unusual as--but possibly even riskier than--other much-debated aspects of the machine, such as its economics and distinctive hand-pulled mechanism for charging its battery. For example, students who turn on the small green-and-white computers will be greeted by a basic home screen with a stick-figure icon at the center, surrounded by a white ring. The entire desktop has a black frame with more icons. This runic setup signifies the student at the middle. The ring contains programs the student is running, which can be launched by clicking the appropriate icon in the black frame.