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A Happy Mac is the normal bootup (startup) icon of an Apple Macintosh computer running older versions of the Mac operating system. It was designed by Susan Kare in the 1980s, drawing inspiration from the design of the Compact Macintosh series and from the Batman character Two-Face . [ 10 ]
Those Macintoshes include a ROM chip varying in sizes up to 4 megabytes (MB), [8] which contains both the computer code to boot the computer and to run the Mac OS operating system. The ROM-resident portion of the Mac OS is the Macintosh Toolbox and the boot-ROM part of that ROM was retroactively named Old World ROM upon the release of the New ...
In 2021, Apple fixed a critical privilege escalation vulnerability in macOS Big Sur, but a fix remained unavailable for the previous release, macOS Catalina, for 234 days, until Apple was informed that the vulnerability was being used to infect the computers of Hong Kong citizens and other people who visited Hong Kong pro-democracy websites ...
macOS Catalina (version 10.15) is the sixteenth major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. It is the successor to macOS Mojave and was announced at WWDC 2019 on June 3, 2019 and released to the public on October 7, 2019.
The System Management Controller (SMC) is a subsystem of Intel and Apple silicon-based Macintosh computers. It is similar in function to the older SMU or PMU of PowerPC based Macintosh computers. [ 1 ] [ 2 ]
Setup Assistant is the application that starts on first boot of a fresh copy of macOS or a new Mac. It configures computer accounts, Apple ID, iCloud, and Accessibility settings. It is also run after major macOS system upgrades. OBEXAgent, a server that handles Bluetooth access. ODSAgent, a server that handles remote disk access. [106]
Applications depend on the correct assignment and interpretation of permissions in order to function properly. [2] Repairing permissions involves checking the permissions of a set of files and folders on a volume with macOS installed against a list of correct POSIX permissions and correcting any discrepancies.
With boot times more of a concern now than in the 1980s, the 30- to 60-second memory test adds undesirable delay for a benefit of confidence that is not perceived to be worth that cost by most users. Most clone PC BIOSes allowed the user to skip the POST RAM check by pressing a key, and more modern machines often performed no RAM test at all ...