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QEMU stands for “Quick EMUlator” and is a processor emulator that relies on dynamic binary translation to achieve a reasonable speed while being easy to port to new host CPU architectures. In conjunction with CPU emulation, it also provides a set of device models, allowing it to run a variety of unmodified guest operating systems; it can thus be viewed as a hosted virtual machine monitor. It also provides an accelerated mode for supporting a mixture of binary translation (for kernel code) and native execution (for user code), in the same fashion as VMware Workstation and VirtualBox do. QEMU can also be used purely for CPU emulation for user level processes, allowing applications compiled for one architecture to be run on another. QEMU was written by Fabrice Bellard and is free software. Various parts are released under different GNU General Public License version 2-compatible licenses. These include the GNU Lesser General Public License (GNU LGPL) or permissive licenses such as the…
Virtualization is the technique of running a “guest” operating system inside an already-running OS; for example, Windows inside Linux, or visa-versa. This article compares four virtualization products available…
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