Oracle VM VirtualBox是一个功能强大且免费的虚拟化包，适用于企业和家庭使用。它最初是由一家名为Innotek GmbH的软件公司创建的，后来被Sun Microsystem收购。它现在由Oracle Corporation作为其虚拟化产品系列的一部分进行开发和维护。当安装在现有操作系统上时，它提供了一个虚拟环境，以便可以加载和运行其他客户操作系统，每个操作系统都有自己的虚拟环境。

Oracle VM 虚拟机

VirtualBox 支持的主机操作系统列表包括：

1. 窗户 11/10/8/7
2. Linux
3. Mac OS X
4. 索拉里斯
5. 开放式Solaris

VirtualBox还允许在^(VirtualBox)Apple硬件上对Mac OS X来宾进行有限的虚拟化。

根据LinuxJournal和LifeHacker进行的调查，VirtualBox是最受欢迎的虚拟化产品，获得了超过 50% 的选票。这个应用程序是完全免费的，因为它是开源的。它最初是由Innotek在专有软件许可下提供的，但后来，VirtualBox Open Source Edition ( OSE ) 作为免费软件发布。

VirtualBox 是如何工作的

虚拟机是为特定的来宾操作系统创建的，用户可以配置任何虚拟机 (VM)。主机操作系统和客户操作系统^(OSs)和应用程序可以通过VirtualBox提供的虚拟化网络设施相互通信。每个GuestOS都可以在其自己的模拟机或虚拟机 (VM) 内自由启动、暂停和停止。

硬盘以称为“虚拟^(Virtual)磁盘映像”（VDI ）的特定于^(VDI)Virtual Box 的容器格式进行模拟，这些格式存储为“.vdi”文件。

VirtualBox还通过自定义虚拟显卡提供图形支持。

VirtualBox还虚拟化以下网络接口^{(Network Interface)}卡：

• AMD PCnet PCI II (Am79C970A)
• AMD PCnet-Fast III (Am79C973)
• 英特尔 Pro/1000 MT 台式机 (82540EM)
• 英特尔 Pro/1000 MT 服务器 (82545EM)
• 英特尔 Pro/1000 T 服务器 (82543GC)

一次最多可以连接八个网络适配器，但只能通过图形界面配置四个。^{(Up to eight network adapters can be attached at once, but only four are configurable through the graphical interface.)}

在声卡类别中，VirtualBox可以虚拟化：

1. 英特尔高清音频
2. 英特尔 ICH AC'97 设备和
3. SoundBlaster 16 卡。

还可以模拟USB 1.1控制器，允许用户使用连接到客户机上的主机的任何USB设备。^(USB)

结论^(Conclusion)

VirtualBox是用于在主机操作系统上运行不同虚拟桌面的最常见应用程序。它是测试新操作系统的最佳应用程序。我们已经了解了如何在 VirtualBox 上安装 Windows。如果您想从Windows 开始菜单改善^{(Windows Start)}VirtualBox体验，请尝试VBoxLaunch。它是免费的，因为它是开源的，但VirtualBox Extension Pack中的一些特殊功能是封闭源代码。

最新版本可从其主页^{(home page)(home page)}下载。

Download VirtualBox and get into the world of Virtualization

Oracle VM VirtualBox is a powerful and free virtualization package for enterprise as well as home use. It was originally created by a software company named Innotek GmbH, which was then purchased by Sun Microsystem. It is now being developed and maintained by Oracle Corporation as part of its family of virtualization products. When installed on existing operating systems, it provides a virtual environment so that additional guest operating systems can be loaded and run, each with its own virtual environment.

Oracle VM VirtualBox

VirtualBox’s supported host operating systems list include:

1. Windows 11/10/8/7
2. Linux
3. Mac OS X
4. Solaris
5. OpenSolaris

VirtualBox also allows limited virtualization of Mac OS X guests on Apple hardware.

According to surveys conducted by LinuxJournal and LifeHacker, VirtualBox was the most popular virtualization product and received over 50% of the vote. This application is full free as it is open source. It was initially offered by Innotek under a proprietary software license but later, VirtualBox Open Source Edition (OSE) was released as free software.

How does VirtualBox work

A virtual machine is created for a particular guest OS, a user can configure any virtual machine (VM). The host OS and guest OSs and applications can communicate with each other through a virtualized network facility provided by VirtualBox. Each GuestOS can be started, paused and stopped freely within its own simulated or virtual machine (VM).

Hard disks are emulated in a VirtualBox-specific container format called “Virtual disk image” (VDI), which are stored as “.vdi” files.

VirtualBox also provides graphics support through a custom virtual graphics card.

VirtualBox also virtualize following Network Interface Cards:

• AMD PCnet PCI II (Am79C970A)
• AMD PCnet-Fast III (Am79C973)
• Intel Pro/1000 MT Desktop (82540EM)
• Intel Pro/1000 MT Server (82545EM)
• Intel Pro/1000 T Server (82543GC)

Up to eight network adapters can be attached at once, but only four are configurable through the graphical interface.

In the category of sound cards VirtualBox can virtualize:

1. Intel HD Audio
2. Intel ICH AC’97 device and
3. SoundBlaster 16 cards.

A USB 1.1 controller can also be emulated which allows a user to use any USB devices attached to the host on the guest.

Conclusion

VirtualBox is the most common application used to run different virtual desktops on a host OS. It is the best application for testing new operating systems. We have already seen how to install Windows on VirtualBox. If you want to improve the VirtualBox experience from the Windows Start menu try VBoxLaunch. It is free of cost because it is open source but some of the special features which come in VirtualBox Extension Pack are under a closed source.

The latest version can be downloaded from its home page.

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