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Guest operating systems are now able to directly recognize USB 3.0 devices and operate at full 3.0 speeds. XHCI controller to support USB 3.0 devices Once the virtual machine platform is defined, Oracle VM VirtualBox improves guest OS performances by leveraging built-in virtualization support (KVM on Linux guests and Hyper-V on Windows guests). It is able to expose a paravirtualization interface to facilitate accurate and efficient execution of software. Paravirtualization support for modern Windows and Linux guests Some of the new features of Oracle VM VirtualBox are:

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Run macOS on Windows for Free with VirtualBox today! Not only is Virtual Box 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. The app is a general-purpose full virtualizer for x86 and AMD64/Intel64 hardware, targeted at server, desktop, and embedded use. If you are interested in the technical details about how VirtualBox implements x86 virtualization, you may find plenty at the ' VirtualBox architecture' article.Oracle VM VirtualBox allows users to run nearly any operating system on a single machine and to freely switch between OS instances running simultaneously.

If something goes wrong, one can easily switch back to a previous snapshot and avoid the need of frequent backups and restores.Р”Р‡or a more detailed introduction, see the Wikipedia article about virtual machines. Especially with the use of snapshots?, one can mess with a computing environment by running it as a virtual machine. VirtualBox is unique on the virtualization market in that it also allows for consolidating clients onto just a few RDP servers, with full client USB support, while 'thin clients' only need to display RDP data. by consolidating many servers into a few. This can save a lot of hardware costs: e.g. Since the full performance of today's computers is rarely needed full-time, instead of running many such physical computers, one can 'pack' many virtual machines onto a few powerful hosts and balance the loads between them.

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With a virtualizer such as VirtualBox, one can run software written for one operating system on another (say, Windows software on Linux) without having to reboot. There are several scenarios that make virtualization attractive: VirtualBox is also different from so-called 'paravirtualization' solutions such as Xen, which require that the guest operating system be modified.

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Virtualizers such as VirtualBox, on the other hand, can achieve near-native performance for the guest code, but can only run guest code that was written for the same target hardware (such as 32-bit Linux on a 32-bit Windows host). While emulators theoretically allow running code written for one type of hardware on completely different hardware (say, running 64-bit code on 32-bit hardware), they are typically quite slow. Instead, every single machine instruction is translated ('emulated'). With that approach, as performed by programs such as BOCHS, guest code is not allowed to run directly on the host. This approach, often called 'native virtualization', is different from mere emulation.

Most of the guest code runs unmodified, directly on the host computer, and the guest operating system 'thinks' it's running on real machine. The physical computer is then usually called the 'host', while the virtual machine is often called a 'guest'. This environment, called a 'virtual machine', is created by the virtualization software by intercepting access to certain hardware components and certain features. When we describe VirtualBox as a 'virtualization' product, we refer to 'full virtualization', that is, the particular kind of virtualization that allows an unmodified operating system with all of its installed software to run in a special environment, on top of your existing operating system.