Originally, the hardware architecture was so closely tied to the Mac OS operating system that it was impossible to boot an alternative operating system. The most common workaround, is to boot into Mac OS and then to hand over control to a Mac OS-based bootloader application. Used even by Apple for A/UX and MkLinux, this technique is no longer necessary since the introduction of Open Firmware-based PCI Macs, though it was formerly used for convenience on many Old World ROM systems due to bugs in the firmware implementation.[citation needed] Now, Mac hardware boots directly from Open Firmware in most PowerPC-based Macs or EFI in all Intel-based Macs. COUNT 5
QSN1 Which technique was once used to boot an alternate operating system than Mac OS? ANS1 boot into Mac OS and then to hand over control to a Mac OS-based bootloader application QSN2 What was introduced that made using Mac OS alternative operating systems easier? ANS2 Open Firmware-based PCI Macs QSN3 What were Open Firmware-based PCI Macs used as a convenience because of? ANS3 bugs in the firmware implementation QSN4 Where does Mac hardware boot directly to in all Intel-based Macs? ANS4 EFI QSN5 Where does Mac harware boot directly to in most PowerPC-based Macs? ANS5 Open Firmware