The Worldwide Developers Conference (WWDC) of Apple, is a developer conference held annually in California by Apple Inc. The conference is used by Apple to showcase its new software and technologies for software developers. Sometime Apple also release some hardware like Macs.Attendees can participate in hands-on labs with Apple engineers, as well as in-depth sessions that cover a wide variety of topics. There all over thousand of attendees from all over the world came here to see the evolution of technology.