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Starting with Mac OS X Jaguar, the system provides a multilingual alert to the user, indicating that the computer needs to be restarted. [29] The color for the kernel panic box was initially white in Mac OS X Jaguar, but was changed to black in Mac OS X Panther. In some rare instances, a Unix-style kernel panic would also be displayed with or ...
2. On the keyboard, hold down the Command and Option keys, and then tap the esc key. In the Force Quit Applications window, click any program other than Finder to highlight it, and then click Force Quit. 3. Repeat until all programs other than Finder are closed, and then close the Force Quit Applications window by clicking the red dot on the ...
launchd has two main tasks. The first is to boot the system, and the second is to load and maintain services.. Here is a simplified view of the Mac OS X Tiger system startup on a PowerPC Mac (on an Intel Mac, EFI replaces Open Firmware and boot.efi replaces BootX):
XNU ("X is Not Unix") is the computer operating system (OS) kernel developed at Apple Inc. since December 1996 for use in the Mac OS X (now macOS) operating system and released as free and open-source software as part of the Darwin OS, which, in addition to being the basis for macOS, is also the basis for Apple TV Software, iOS, iPadOS, watchOS, visionOS, and tvOS.
macOS Monterey is the final version of macOS that supports the 2015–2017 MacBook Air, Retina MacBook Pro, 2014 Mac Mini, 2015 iMac and cylindrical Mac Pro, as its successor, macOS Ventura, drops support for those models. It is the last version of macOS that can run on Macs with 4GB of RAM.
the clean system will immediately behave as if FileVault was enabled after installation; there is no recovery key, no option to store the key with Apple (but the system will behave as if a key was created) when the computer is started, Disk Password will appear at the EfiLoginUI – this may be used to unlock the volume and start the system
Support for Macintosh clones was first exhibited in System 7.5.1, which was the first version to include the "Mac OS" logo (a variation on the original Happy Mac startup icon), and Mac OS 7.6 was the first to be named "Mac OS" instead of "System". These changes were made to disassociate the operating system from Apple's own Macintosh models.
In all these cases, the left Apple key had an outlined "open" Apple logo, and the one on the right had an opaque, "closed" or "solid" Apple logo key. The Apple Lisa had only the closed Apple logo. When the Macintosh was introduced in 1984, the keyboard had a single command key with a looped square symbol (⌘, U+2318), because Steve Jobs said ...