The iPhone — retroactively labeled the original iPhone, iPhone 2G, or iPhone EDGE—was the first generation of iPhone designed and marketed by Apple Inc. and was succeeded by the iPhone 3G. It was announced on January 9, 2007 after months of rumors and speculation. It was introduced in the United States on June 29, 2007
Symbian is a mobile operating system (OS) and computing platform designed for smartphones and currently maintained by Nokia. The Symbian platform is the successor to Symbian OS and Nokia Series 60; unlike Symbian OS, which needed an additional user interface system, Symbian includes a user interface component based on S60 5th Edition. The latest version,
A smartphone is a high-end mobile phone that offers more advanced computing ability and connectivity than a contemporary feature phone (i.e. a modern low-end phone). A smart phone combines the functions of a personal digital assistant (PDA) and a mobile phone. Today’s models typically also serve as portable media players and camera phones with high-resolution
