Web-based computer software platforms for televisions for providing a consistent software-based environment for executing web applications and providing web application services, namely, allowing integration with other operating systems mounted on the televisions, providing services to access and control the broadcasting function of the televisions, thereby enabling development of web applications by utilizing the broadcasting function of the television platform; Web-based computer software platforms for mobile phones for providing a consistent software-based environment for executing web applications and providing web application services, namely, allowing integration with other operating systems mounted on the mobile phones, enabling the reduction of development time of products and enhancing the quality of products through re-using the software per model by the kernel common use and module; Web-based computer software platforms for automotive devices for providing a consistent software-based environment for executing web applications and providing web application services, namely, allowing integration with the native platform mounted on the automotive devices in order to establish a standard platform capable of responding to the demands of the respective automobile companies by developing a library for automobiles and providing the standardized application programming interface (API) in order to use the web-based computer software platform on in-vehicle infotainment (IVI) and telematics