Hardware and software made for each other.

Since the software built into every Mac is created by the same company that makes the Mac, you get a fully integrated system in which everything works together perfectly. OS X works with the processor in your Mac to deliver the best possible performance. It works with the Multi-Touch trackpad in Mac notebooks so they feel natural to use. Power Nap takes advantage of the Mac hardware to keep the entire system up to date while it sleeps.¹ And OS X gives you long battery life by working with the computer’s built-in sensors to dim the screen in low-light conditions and even regulating processor activity between keystrokes.