These countries have Linux based national operating system.
Dell is one of the (only) few big names that sells computers pre-loaded with Linux. The choice of Linux distribution is Ubuntu here. While Ubuntu powered Dell computers are available almost all across the globe, it gained popularity in Asian markets like India and China.
In an attempt to to break the foreign monopoly in the field of infrastructure software, China launches its own Linux based Mobile OS.
Chinese government has chosen Ubuntu to build its national OS: Ubuntu Kylin. First version of Ubuntu Kylin will be released along with Ubuntu 13.04.