BlackBerry is most popular smartphone now a day. It is relased by Research In Motion which is usually called RIM in 1999. The BlackBerry Operating System is a software platform developed by its manufacturer RIM. Its OS provides multi-tasking that maximises use of the devices specialised platform including trackball, trackpad and touchscreen. This history starts like human history,step by step gets achievements. In Future, BlackBerry is looking very upbeat.