QEMU
QEMU is a CPU emulator which allows you to run one operating system within another. It is similar to projects such as Bochs and PearPC, but has several features these lack, including increased speed and support for multiple architectures.
Advantages of QEMU
- supports both IA-32 (x86) and PowerPC architectures
- support for other architectures in both host and emulated systems (see homepage for complete list)
- increased speed - some applications can run in close to real time
- support for running Linux binaries for other platforms
Disadvantages of QEMU
- Incomplete support for Microsoft Windows and other operating systems
- Still not as fast as a virtual machine such as VMWare
- Requires X11 and SDL
- More difficult to install and use than comparable emulators