What is a virtual machine? Easily explained

If you use multiple operating systems, this only works with a virtual machine. You can find out exactly what this is in this practical tip.

Virtual machine - what is it actually?

The term "virtual machine" simply means software that claims to be an independent computer. You can imagine it as if you are installing another one next to your computer - with the advantage that you can switch between different operating systems with just a few clicks of the mouse.

• In addition to "virtual machine" or "VM", the term "virtual PC" is often used.
• The software simulates an independent system. To do this, it uses a given part of the memory, the computing power and the hard disk of the computer.
• A virtual machine reacts like an independent computer. Changes or installations that you make on the virtual PC only affect the VM. Your main operating system remains unaffected.

What is the advantage of a VM?

• Thanks to virtual machines, you can install and use several operating systems on one computer. This definitely saves hardware.
• The type of operating system is irrelevant. You can either install different versions of Windows or non-system operating systems such as OS X or Ubuntu in parallel.
• A well-known software for using virtual machines is VMWare Workstation. A free alternative is the freeware VMWare Player. The setup is very simple: You can find detailed instructions on installing Windows 8 with the virtual machine here.

For Mac there is Parallels Desktop virtualization software. Another practical tip will tell you how easy it is to move files from the virtual machine.