Apart from Qemu being one of the most power full virtualisation tool, used in a wide range of cloud computing providers, it can also be used to emulate a different architecutre (e.g. you can run arm64 binaries/linux on you x86 machine).

Qemu support various arch like ARM , It is useful for Tizen developers. However, if you would like to hack on Tizen on ARM, you’re able to do this now with or without any ARM Hardware. First install qemu-system-arm on your system (on debian family : sudo apt-get install qemu-system-arm ), then create or download armv7l disk image (tizen-common-wayland-arm-sunxi-20140527rzr.raw will also work). Since we wont boot on the image a kernel is needed just rebuild it or download it from upper link (vexpress has best support AFAIK)...

1. QEMU is good at device emulation and has various platforms which is perfect for development or testing on different platforms. 2. QEMU's documentation is quite helpful and it is easy to use with just few lines of command lines. 3. With KVM, QEMU is so efficient that you can even expect native experience from it. 4. As an open source software, its community is active and friendly. Thanks to engineers in QEMU community for introducing me to open source world.