With VDI, virtual desktop images are stored in a data center and provided to a client via the network. The virtual machines will include the entire desktop stack, from operating system to applications to user preferences, and management is provided centrally through the backend virtual desktop infrastructure.
The promise is that VDI will replace the need for myriad systems management and security tools that are currently deployed. No more demands for traditional desktop management tools for OS deployment, patch management, anti-virus, personal firewalls, encryption, software distribution and so on. In fact, many are suggesting that we can return to thin client computing models