Search results
Results From The WOW.Com Content Network
Apple G3 iMac booted in Target Mode Target Disk Mode (sometimes referred to as TDM or Target Mode ) is a boot mode unique to Macintosh computers. When a Mac that supports Target Disk Mode [ 1 ] is started with the 'T' key held down, its operating system does not boot.
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. [3] [4] On the other hand, a failure to do so will result in a different ...
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.
For iPhones, iPads and Apple silicon-based Macs, the boot process starts by running the device's boot ROM. On iPhones and iPads with A9 or earlier A-series processors, the boot ROM loads the Low-Level Bootloader ( LLB ), which is the stage 1 bootloader and loads iBoot; on Macs and devices with A10 or later processors, the boot ROM loads iBoot.
[4] Just before jumping to the bootloader, some systems on a chip also remove the boot ROM from the memory mapping, while others do not, making it possible to dump the boot ROM from later analysis. [3] If the boot ROM is still visible, bootloaders can also call the code of the boot ROM (which is sometimes documented).
On August 4, 2020, a refresh of the 5K iMac was announced, including the T2 chip. [16] The functionality of the T2 chip is incorporated in Apple's M-series CPUs, thus eliminating the need for a separate chip in Apple silicon-powered computers. [5] The T2 chip was discontinued with the completion of the Mac transition to Apple silicon in June 2023.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
The Apple Remote is a remote control introduced in October 2005 by Apple Inc. for use with a number of its products with infrared capability. It was originally designed to control the Front Row media center program on the iMac G5 and is compatible with many subsequent Macintosh computers.