Vmware is a very useful application as it allows users to run many 'Virtual Machines' simultaneously. Vmware simulates hardware and allows you to run an operating system and other software just as you would on a regular machine.
The advantage of running a virtual machine is that you can change things and mess around without worrying about consequences. Perfect for a development or testing environment. Since all settings are stored in a file it is very easy to move a virtual machine created on one computer to another computer. You can also simulate situations which would be complex and expensive to do using real hardware. Virtual networks allow bridging of certain network adapters so they appear in the virtual machine and can be used to test various firewall or internet configurations.
Basically, the possibilities are endless when using virtual machines for different purposes.
For more information on Virtualization, check out my blog : Virtualization Technologies.
