The general concept of virtualizing a software, a device, or an operating system is very simple and direct:  to maximize the use of your computer resources in order to ensure reduction in cost and expense.  Although this is a clearly enough reason to somehow justify the purpose of virtualization, it is just but right to know what sort or resources are being used in order to completely fulfill the process of software virtualization. 

The method of aggregating, spanning, and concatenating all of system’s resources results into a combined and larger pool of resource that allows for the maximum utility of the PC.  Some of the formidable system resources that you can potentially aggregate, concatenate, and span are virtual memory which when used basically provides a varying virtual location space for the application that are virtualized on your system. This then allows for a standardized identification of physical memory space and area.  Another essential resource that is identified to be good resource for virtualization is the storage.  You can virtualize your storage device in order to ensure that saved files which are important remain to its current vital state. This is so possible by having a virtual storage for the most essential files and the least ones. 

The manner of virtualizing the storage is by ensuring that the logical storage is completely abstracted from the physical storage.  The physical device resource is then aggregated into a pool of storage from which the logical storage is made and created.  This then becomes a good resource for virtualizing more and more software or programs on your computer system.