Yes, they do. NewWorld Macs still have hardware-specific start-up code in Boot ROM, just as IBM-type PCs still have BIOS chips. On Jun 7, 2005, at 10:13 AM, Robert Ameeti wrote: > At 8:55 AM -0700, 6/7/05, James Jones wrote: > >> 2) Macs will be Macs and other Intel-based PCs won't be. A Dell >> PC, for example, won't have Mac ROMs, so it won't boot OS X >> without modification. > > Macs don't use ROMs.