One Laptop Per Child (OLPC) computers is a ''subnotebook'' -- a notebook that is smaller than the average notebook -- that's donated to developing countries, with the hope that, every primary school child could have their own laptop to explore the world. The OLPC is very inexpensive to produce, costing developers fifty dollars($50) for everyone produced. a , The Touch Book - developed by Always Innovating -- is a lightweight portable device that has a detachable magnetic keyboard and the SheevaPlug - a plug computer designed to run network-based software devices are some devices that use an ARM processor.   These devices also use a Linux based OS and since Fedora is used on the XO units, having a reliable ARM build of Fedora is increasingly important.