Xcode: The centerpiece of developer tools.

The centerpiece of the developer tools included with Mac OS X is the Xcode application. Xcode is a full-featured IDE for developing Mac applications and includes a world-class code editor, a graphical debugger, and integrated Objective-C, C, and C++ compilers. Xcode has intimate knowledge of the Cocoa frameworks that power Mac OS X, and it is even able to identify bugs by analyzing the code you write — without running the application. The intuitive development experience makes it easy to get your first application up and running, yet Xcode is so powerful that Mac OS X itself is built using the exact same toolset.

MAC OS X

Mac OS X is the world’s most advanced operating system. Built on a rock-solid UNIX foundation and designed to be simple and intuitive, it’s what makes the Mac innovative, highly secure, compatible, and easy to use. Quite simply, there is nothing else like it.