Tutorials Point is a place for beginners in all technical areas. This website covers most of the latest technoligies and explains each of the technology with simple examples. You also have a tryit editor, wherein you can edit your code and try out different possibilities of the examples.
iOS is a mobile operating system developed and distributed by Apple Inc. Originally released in 2007 for the iPhone, iPod Touch, and Apple TV. iOS is derived from OS X, with which it shares the Darwin foundation. iOS is Apple's mobile version of the OS X operating system used on Apple computers.