COS (operating system) the smart phone market when COS was introduced and Apple most of the remaining market share. COS looks very similar to Android and has its own Application Portal much like Android Market and iOS App Store. The Linux kernel is GPLv2 and the COS framework is closed source and licensed by the originators. The COS Core operating system is based on the Linux kernel and can be seen as a Linux distribution, in the same way as the Android operating system. According to the official statements, COS supports HTML5 based applications and Java based applications. COS (operating system) COS is
Market share share is closely monitored for signs of change in the competitive landscape, and it frequently drives strategic or tactical action." Increasing market share is one of the most important objectives of business. The main advantage of using market share as a measure of business performance is that it is less dependent upon macro environmental variables such as the state of the economy or changes in tax policy. In the United States market, however, increasing market share may be dangerous for makers of fungible and potentially hazardous products such as medicine, due to a US-only legal doctrine called market share liability.