Dr Cyprian Chinwo

In a fast-paced world, where communication is not taken for granted, the use of mobile devices as one of the main methods of communication is finding direct applications in the society where they can be used as an interface between humans and devices or machines with the eradication of distance and location as a barrier with the goal of making life easier. As technology advances, regular mobile phone has also evolved from being a 'phone to a smartphone and tablet' in the past years with millions of features, thanks to the operating systems. This report provides a comprehensive historic overview and introduction to smartphones and operating systems for mobile devices. Also, a compilation of a research on the four currently most popular mobile platforms or operating systems, it consists of a comprehensive comparison of the four heavyweights: Apple's iOS, Google's Android, Microsoft's Windows Phone, and RIM's BlackBerry OS. The report also incorporates a better knowledge of operating systems (OS), their history, usability, functionality, design, applications etc. Furthermore, this report offers a complete insight on mobile devices operating systems and the massive development that has taking place from the time past till date, the smartphone is no more just a device that can be taken casually. It has a zillion more uses now apart from basic ones, and that has contributed to the success of making it not just a mobile phone but also a smartphone.