on your i Phone/i Pad/i Pod touch, all in one place.
Throughout the early 1990s, Apple had tried to create a "next-generation" OS to succeed its classic Mac OS through the Taligent, Copland and Gershwin projects, but all of them were eventually abandoned.
This purchase also led to Steve Jobs returning to Apple as an interim, and then the permanent CEO, shepherding the transformation of the programmer-friendly OPENSTEP into a system that would be adopted by Apple's primary market of home users and creative professionals.
Since OS X 10.9 Mavericks, releases have been named after landmarks in California.
Apple shortened the name to "OS X" in 2012 and then changed it to "mac OS" in 2016, adopting the nomenclature that they were using for their other operating systems, i OS, watch OS, and tv OS.