ABOUT (COURTESY: WIKIPEDIA)

Windows Server 2008 R2 is a server operating system produced by Microsoft. It was released to manufacturing (RTM) on July 22, 2009[4] and launched on October 22, 2009.[5] According to the Windows Server Blog, the retail availability was September 14, 2009.[6] It is built on the same kernel used with the client-oriented Windows 7. It is the first 64-bit only operating system released from Microsoft. Enhancements include new functionality for Active Directory, new virtualization and management features, version 7.5 of the Internet Information Services (IIS) web server and support for up to 256[7] logical processors. There are seven editions: Foundation, Standard, Enterprise, Datacenter, Web, HPC Server and Itanium, as well as Windows Storage Server 2008 R2.