mac OS is the operating system that powers everything you do on a Mac.
mac OS Sierra introduces Siri to Mac — along with new ways to enjoy your photos, shop more securely online, and work more seamlessly between devices.
And i Cloud Photo Library lets you store a lifetime’s worth of photos and videos in the cloud. Streamlined design and intuitive editing features make it easy to create beautiful HD movies and share your favorite moments.
And with i Cloud, you can enjoy them on all your devices.
Learn more The easiest way to create great-sounding songs on your Mac.
With an intuitive interface and access to a complete sound library, it’s never been easier to learn, play, record, and share music like a pro.
Learn more This powerful word processor gives you everything you need to create documents that look beautiful. It lets you work seamlessly between Mac and i OS devices.