Some of the features offered by Qemu are: Qemu and VirtualBox belong to "Virtualization Platform" category of the tech stack. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL) version 2. VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. What is VirtualBox? Run nearly any operating system on a single machine and to freely switch between OS instances running simultaneously. When using KVM, it can virtualize x86, server and embedded PowerPC, 64-bit POWER, S390, 32-bit and 64-bit ARM, and MIPS guests.
it supports virtualization when executing under the Xen hypervisor or using the KVM kernel module in Linux. When used as a virtualizer, it achieves near native performance by executing the guest code directly on the host CPU. By using dynamic translation, it achieves very good performance an ARM board) on a different machine (e.g. When used as a machine emulator, it can run OSes and programs made for one machine (e.g. What is Qemu? A generic and open source machine emulator and virtualizer. Qemu vs VirtualBox: What are the differences?
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