There is a Dreamcast emulator, known as lxdream, under active development for Linux and Mac OS X. It is not completely stable yet and is only capable of running a few games.
Yes. DeSmuME is available for Mac OS X.
yes zerowii
Classic Mac OS games can be used in Mac OS X if the Mac is a PowerPC Mac, the game was written for PowerPC processors, and the version of Mac OS X is Tiger or older. They cannot be used on Intel Macs except via the use of a third-party emulator, such as SheepShaver.
No, for all of the Old World macs (pretty much MacOS 2.0 -9.2 ) you need the ROM image. The system needs the information on the ROM chip to run.
The second name of Mac OS X v10.4.5 is Mac OS X v10.4 Intel.Mac OS X 10.4 was known as Mac OS X Tiger.
No, bootcamp is not required for virtual machines which are running from mac os x. Parallels is a virtual machine emulator you can put any virtual OS into it without disturbing your Mac OS X system setup. Bootcamp is used when you are installing windows natively on the mac.
Mac OS X 10.4 (Tiger) needs to be purchased as it is not possible to update from Mac OS X 10.2.8
Mac OS X is an operating system released by Apple Inc. It is designed for Apple branded computers, which is why you will never see a Dell, or an HP computer run Mac OS X. There are only two important versions of Mac OS X, Mac OS X Server, and regular Mac OS X. Mac OS X server was designed for servers, while regular Mac OS X was designed for most computers. The current version of Mac OS X (10.6) is named Snow Leopard.
I am afraid that the .n64save and .n64freeze formats are used only by the propriety n64 emulator for Mac OS X, Sixtytforce. [www.sixtyforce.com]
VirtualPC can do that. There is a port of QEMU to Mac OS X that should run even better, but it is a bit more difficult to use.
PowerPC Mac OS X apps are emulated transparently on Intel Macs. For "Classic" programs, you'll have to use an emulator like SheepShaver.
Yes, it is. Any type of MacBook that comes out now is a Mac OS X. The most recent version of Mac OS X is Mac OS X Lion, coming out soon.