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iBoot is the stage 2 bootloader for iPhones, iPads, Apple silicon-based Macs, and the T2 chip in Intel-based Macs with such a chip. [3] [4] Compared with its predecessor, iBoot improves authentication performed in the boot chain. [2] For Intel-based Macs with a T2 chip, the boot process starts by running code on the T2 chip from the boot ROM.
An Apple PowerBook 180c displaying the Happy Mac during the startup process. In all instances, the startup chimes will be heard upon completion of the boot process (if successful), and a Happy Mac (or the Apple logo on newer versions) will be displayed on the screen to visually indicate that no hardware issues were found during the boot process.
Apple IIe Card for the Macintosh LC – Double Exposure; Apple II 3.5" Disk Controller Card – NuMustang; Apple Color OneScanner 600/27 – Rio; Apple Color OneScanner 1200/30 – New Orleans; Beats Flex – B372; HomePod – B238; HomePod Mini – B520; Built-in iSight (2005) – M33; External iSight (2003) – Q8; Lightning Digital AV ...
BIOS interrupt calls perform hardware control or I/O functions requested by a program, return system information to the program, or do both. A key element of the purpose of BIOS calls is abstraction - the BIOS calls perform generally defined functions, and the specific details of how those functions are executed on the particular hardware of the system are encapsulated in the BIOS and hidden ...
This is a list of built-in apps and system components developed by Apple Inc. for macOS that come bundled by default or are installed through a system update. Many of the default programs found on macOS have counterparts on Apple's other operating systems, most often on iOS and iPadOS.
The Apple Developer Tools are a suite of software tools from Apple to aid in making software dynamic titles for the macOS and iOS platforms. The developer tools were formerly included on macOS install media, but are now exclusively distributed over the Internet. As of MacOS 14.6.1, Xcode is available as a free download from the Mac App Store.
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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 ...