macOS Sierra is the thirteenth major release of macOS (previously OS X), Apple Inc.’s desktop and server operating system for Macintosh computers. The successor to OS X El Capitan, it is the first version of the operating system issued under the June 2016 rebranding as macOS. Sierra is named after California’s Sierra Nevada mountain range. Its major new features concern Continuity, iCloud, and windowing, as well as support for Apple Pay and Siri.
The user can access the Siri intelligent assistant via the Dock, the menu bar or a keyboard shortcut and results are shown in a window in the upper-right corner. Siri can send messages, search the web, find files and adjust settings. Results can be dropped into other applications or pinned to Notification Center. For instance, pictures from search results can be dragged into a document.
Mac OS X El Capitan is the Apple operation system that starting on September 30th. Everybody will be able to install Apple’s latest OS X update, El Capitan, on their Macs. It’ll be free, and given that Apple claims its predecessor had “the fastest adoption ever” of any PC OS, it’ll be popular too. El Capitan is the small one in Apple’s big-then-small OS update cadence, which means that we have just a few core changes, a bunch of app updates, and a healthy pile of bug fixes. El Capitan takes the sorts of things that experts have been doing with third-party apps and utilities for years on the Mac and builds them right into the OS. Spotlight is becoming more than just a simple file search box.