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Virtual Box Free Download for Windows, macOS, and Linux

Virtual-Box

Virtual-Box

Virtual-Box

Virtual-Box

VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. 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.

Presently, VirtualBox runs on Windows, Linux, Macintosh, and Solaris hosts and supports a large number of guest operating systems including but not limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista, Windows 7, Windows 8, Windows 10), DOS/Windows 3.x, Linux (2.4, 2.6, 3.x and 4.x), Solaris and OpenSolaris, OS/2, and OpenBSD.

VirtualBox is being actively developed with frequent releases and has an ever-growing list of features, supported guest operating systems and platforms it runs on. VirtualBox is a community effort backed by a dedicated company: everyone is encouraged to contribute while Oracle ensures the product always meets professional quality criteria.


In computing, a virtual machine (VM) is an emulation of a computer system. Virtual machines are based on computer architectures and provide the functionality of a physical computer. Their implementations may involve specialized hardware, software, or a combination.

There are different kinds of virtual machines, each with different functions:

System virtual machines (also termed full virtualization VMs) provide a substitute for a real machine. They provide the functionality needed to execute entire operating systems. A hypervisor uses native execution to share and manage hardware, allowing for multiple environments that are isolated from one another, yet exist on the same physical machine. Modern hypervisors use hardware-assisted virtualization, virtualization-specific hardware, primarily from the host CPUs.
Process virtual machines are designed to execute computer programs in a platform-independent environment.
Some virtual machines, such as QEMU, are designed to also emulate different architectures and allow execution of software applications and operating systems written for another CPU or architecture. Operating-system-level virtualization allows the resources of a computer to be partitioned via the kernel. The terms are not universally interchangeable.

Virtual machines

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. This environment, called a "virtual machine", is created by the virtualization software by intercepting access to certain hardware components and certain features. The physical computer is then usually called the "host", while the virtual machine is often called a "guest". Most of the guest code runs unmodified, directly on the host computer, and the guest operating system "thinks" it's running on a real machine.

This approach, often called "native virtualization", is different from mere emulation. With that approach, as performed by programs such as  BOCHS, guest code is not allowed to run directly on the host. Instead, every single machine instruction is translated ("emulated"). 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. 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).

VirtualBox is also different from so-called "paravirtualization" solutions such as  Xen, which require that the guest operating system be modified.

There are several scenarios that make virtualization attractive:

Operating system support.
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.

Infrastructure consolidation.
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. This can save a lot of hardware costs: e.g. by consolidating many servers into a few. 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.

Testing and disaster recovery.
Especially with the use of snapshots? one can mess with a computing environment by running it as a virtual machine. If something goes wrong, one can easily switch back to a previous snapshot and avoid the need for frequent backups and restores.




Details.
App NameVirtual Box
OS SupportWindows, macOS, and Linux
DeveloperOracle Corporation
Version 6.1.0
LicenseFree                                      


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 Oracle Linux 8 / Red Hat Enterprise Linux 8 / CentOS 8
 Oracle Linux 7 / Red Hat Enterprise Linux 7 / CentOS 7
 Oracle Linux 6 / Red Hat Enterprise Linux 6 / CentOS 6
 Ubuntu 19.10
 Ubuntu 18.04 / 18.10 / 19.04
 Ubuntu 16.04
 Debian 10
 Debian 9
 Debian 8
 openSUSE 15.0
 Fedora 31
 Fedora 29 / 30


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