Operating Systems – Foundations of Modern Computing - macOS : Apple's operating system

💻 macOS Tahoe: Features and Context A comprehensive overview of macOS, Apple's proprietary, Unix-based operating system for Mac computers, tracing its evolution from its origins in NeXTSTEP and Mac OS X to the present day. It details the operating system's architecture, noting its foundation on the XNU kernel and Darwin, and discusses hardware transitions from PowerPC to Intel, and subsequently to Apple silicon (ARM). A significant portion of the text is dedicated to a release history timeline, chronicling major versions like Mac OS X Tiger, OS X Yosemite, and the re-branded macOS Big Sur, along with changes to the user interface like the shift from Aqua to flatter designs and eventually the upcoming Liquid Glass interface. Finally, the text touches on aspects of software and hardware compatibility, including the use of Cocoa and Carbon APIs, and the system's focus on security and its market usage share.