Mobile operating system share of operating systems. However, variations occur in popularity by regions, while desktop-minority also applies on some days in regions such as United States and United Kingdom. Mobile operating system milestones mirror the development of mobile phones and smartphones: These operating systems often run atop baseband or other real time operating systems that handle hardware aspects of the phone. Android (based on the modified Linux kernel) is a mobile operating system developed by Google Inc. Besides having the largest installed base worldwide on smartphones, it is also the most popular operating system for general purpose computers (a category that includes
Mobile operating system devices, providing secure real-time push-email communications on wireless devices. Services such as BlackBerry Messenger provide the integration of all communications into a single inbox. In September 2012, RIM announced that the 200 millionth BlackBerry smartphone was shipped. As of September 2014, there were around 46 million active BlackBerry service subscribers. In early 2010s, RIM has undergone a platform transition, changing its company name to BlackBerry Limited and making new devices on a new platform named "BlackBerry 10". Windows Mobile is a discontinued operating system from Microsoft that it replaced with Windows Phone. It is closed source and proprietary. The Windows