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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 ]
For example, the Alt (PC) and ⌥ Option (Mac) keys function equivalently; the same is true for ⊞ Win (PC) and ⌘ Command (Mac) – however, the physical location of those keys is reversed. There are also keys exclusive for each platform (e.g. Prt Sc), some of which may require software remapping to achieve the desired function. [17]
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): Open Firmware activates, initializes the hardware, and then loads BootX. BootX loads the kernel, spins the pinwheel cursor, and loads any needed kernel extensions (kexts). The kernel loads ...
Mac OS X booting up in single-user mode. In PowerPC-based Macintoshes, the boot process starts with the activation of BootROM, the basic Macintosh ROM, which performs a Power On Self Test to test hardware essential to startup. [4] On the passing of this test, the startup chime is played and control of the computer is passed to OpenFirmware.
This revision also replaced the Expose (F3) key with a Mission Control key, and the Dashboard (F4) key with a Launchpad key. On June 11, 2012, Apple updated the line with Intel Ivy Bridge dual-core Core i5 and i7 processors, HD Graphics 4000, faster memory and flash storage speeds, USB 3.0 , an upgraded 720p FaceTime camera, and a thinner ...
The secondary processor in T2 is an 32-bit ARMv7-A based CPU called Secure Enclave Processor (SEP) which has the task of generating and storing encryption keys. It is running an operating system called "sepOS" based on the L4 microkernel .
The Intel-based MacBook Pro is a discontinued line of Macintosh notebook computers sold by Apple Inc. from 2006 to 2021. It was the higher-end model of the MacBook family, sitting above the low-end plastic MacBook and the ultra-portable MacBook Air, and was sold with 13-inch to 17-inch screens.
The Mac transition to Apple silicon marked a radical change in the POST process in Macs. Unlike most Intel-based Macs that use EFI-based firmware, these Apple silicon-based Macs uses a boot ROM that loads the Low-Level Bootloader (LLB), similar to that of the firmware found in the iPhone and iPad. Like Intel-based Macs with a T2 security chip ...