In computing, virtualization means creating a virtual version of a device or resource, such as a server, storage device, or even an operating system where the framework divides the resource into one or more execution environments (webopedia.com, 2014). Virtualization was invented by IBM in the 1960s (Jansen, 2013). The first operating system provided by IBM that included this software was in 1966, and in 1999, a startup called VMware released a product called VMware workstations. This product ran on regular PCs running Linux or Windows and was aimed at developers and testers (Jansen, 2013). In 2001, everything changed when VMware released the VMware ESX server. This server virtualization is a web technique used in businesses to consolidate or integrate multiple physical servers into one. Along with server virtualization, desktop virtualization has been available since the early 2000s, but saw slow growth in the market until the advent of cloud and BYOD (Presciutti, 2014). While there are many reasons that led to the creation of virtualization, cost reduction and space appear to be the two biggest catalysts. In general, to virtualize, a person must use a layer of software that provides the illusion of a "real" machine to multiple instances of "virtual machines". Due to the fact that the number of physical servers is decreasing, companies are starting to save a lot of money. First, they consume less electricity, both for servers and cooling systems, and, again, they take up a very small footprint. Something as simple as partitioning a hard drive is considered virtualization, since you take one drive and make it act like two hard drives. At this point... half of the document... May 15, 2014 on < http://searchvirtualdesktop.techtarget.com/tip/The-future-of-application-virtualization-The-VDI -app-store-concept>Presciutti , Laura. "NelsonHall examines the future of desktop virtualization." www.forbes.com. February 11, 2014. Retrieved from the World Wide Web on May 15, 2014 at < http://www.forbes.com/sites/emc/2014/02/11/nelsonhall-examines-the-future-of-desktop-virtualization />Jansen, Geert Jansen and Fishman, Alex. "The future of virtualization." October 2, 2013. Retrieved from the World Wide Web on May 15, 2014 at < http://www.ravellosystems.com/blog/the-future-of-virtualization/>“The Future of Virtualization, Cloud Computing, and Green ESSO ." Virtualization.net. October 20, 2010. Retrieved from the World Wide Web on May 15, 2014 at < http://www.virtualization.net/990-the-future-of-virtualization-cloud-computing-and-green -it/>