Oracle - (Open Source)
VirtualBox is an easy and elegant solution for those who want to control a computer from another computer.
VirtualBox offers virtualize your operating system (OS) guests on a host machine. Called hypervisor, the application supports Windows OS X, Linux, Mac, Solaris, FreeBSD, etc.. as host, Mac OS X missing the call as a guest.
It also includes a remote access via HTTP protocol, convenient for demonstrations on a clean system. The ability to manage multiple states of the system is particularly interesting and its interface is very simple.
Virtualization solutions allow installing an operating system on a virtual machine using the resources of the host PC , thus enjoying very good performance. In the genre, several solutions are known for their ease of use, such as VMware Workstation , Parallels Desktop or Microsoft Virtual PC 2007 SP1.
A virtual machine is a useful way to use two operating systems simultaneously and harmless to the host computer. There is the possibility to install Linux on a virtual machine on Windows and vice versa .
# The following items were fixed and/or added:
* VMM: fixed VERR_REM_VIRTUAL_CPU_ERROR under rare conditions after the guest has been reset
* VMM: fixed host freezes with 64-bit guests on 32-bit Linux hosts
* VRDP: added a workaround for rdesktop clients not properly updating the screen size when minimized
* AHCI: fixed a rare bug which can cause a guest memory corruption after the guest storage controler has been reset
* NAT: another attempt to fix crashes under rare conditions (Windows hosts only)
* Mac OS X hosts: addressed issues running Leopard / Snow Leopard
* Linux hosts / Bridged Networking: fixed the problem with device driver unloading on kernels 3.2.18 and newer due to an invalid reference counter
* Linux hosts / guests: Linux 3.5-rc1 fixes
* Linux Additions: the guest content was sometimes not properly updated
* Solaris Additions: installer fix for X.org Server 1.11 and 1.12