Mobile operating system software of its own. MIUI for POCO is a custom mobile operating system that is based on MIUI, which itself was based onAndroid "Open Source Project (AOSP)". Just like it predecessor, it also develop by Xiaomi Inc. Unlike the original MIUI, MIUI for POCO was specifically customized for their Poco series smartphone, including difference UI and more frequent update compare to the original MIUI. Just like MIUI which is based on open source AOSP, MIUI for POCO also consists of closed source and proprietary software of its own. OxygenOS is based on the open source Android Open Source Project (AOSP)
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