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
Smartphone when the cover is closed, it protects the screen. Some "book"-like cases have additional pockets for credit cards, thus enabling people to use them as wallets. Accessories include products sold by the manufacturer of the smartphone and compatible products made by other manufacturers. A mobile operating system (or mobile OS) is an operating system for phones, tablets, smartwatches, or other mobile devices. Mobile operating systems combine features of a personal computer operating system with other features useful for mobile or handheld use; usually including, and most of the following considered essential in modern mobile systems; a touchscreen, cellular, Bluetooth, Wi-Fi