Parallels Desktop 4.0 for Mac is the virtualization software allowing you to run Windows, and Linux operating systems right within your Mac OS X box.
Parallels Desktop 4.0 for Mac lets you run Windows-based applications alongside your standard Mac OS X software like they were native Mac applications. Not only you can run these Windows applications normally, but also they can interact with your Mac software and you can even drag-and-drop text and files between them.
Parallels Desktop for Mac version 4.0 includes over 50 new features and free third-party software: Acronis True Image, Acronis Disk Director and Kaspersky Internet Security.
Improved performance is delivered thanks to the support for Intel Core 2 Duo CPUs and physical memory of up to 8GB RAM.
Parallels Desktop for Mac 4.0 is not only compatible with Windows, Linux and other OSes software, but also with external devices such as USB memory sticks and USB devices that can be accessed and used from within the virtual machine running on your Mac.