Windows Server 2008 R2
Windows NT 3.5 Windows NT 3.51 Windows NT 4.0 Windows 2000 Windows XP Windows Server 2003 Windows XP Professional x64 Windows Vista Windows Server 2008 Windows 7 Windows Server 2008 R2 Windows 8 Windows Phone 8 Windows RT Windows Server 2012
Windows Server 2008 R2 is a server operating system from Microsoft and was released on 22 October 2009. Unlike Windows Server 2003 R2 Windows Server 2008 R2 is not closely related to the direct predecessor Windows Server 2008; Windows Server 2008 is based on Windows Vista, Windows Server 2008 R2, however, to Windows 7 Windows Server 2008 R2 includes a number of new features, including support for up to 256 logical processors and Direct Access. On 22 February 2011 the first service pack for Windows Server 2008 R2 was released.
Windows Small Business Server 2011, the latest version of Windows Small Business Server product line, based on Windows Server 2008 R2 and was published in 2011.
Windows Server 2008 R2 is available as the first Microsoft operating system is not supported on 32 - bit processors. There can be only installed on 64 -bit x86 processors, and Intel Itanium computers.
Windows Server 2008 R2 is available in the following editions:
- Windows Server 2008 R2 Foundation (64- bit)
- Windows Server 2008 R2 Standard (64- bit)
- Windows Server 2008 R2 Enterprise (64- bit)
- Windows Server 2008 R2 Datacenter (64- bit)
- Windows Web Server 2008 R2 ( 64- bit)
- Windows Storage Server 2008 R2 ( 64- bit)
- Windows Server 2008 R2 for [ Itanium ] - based systems (64- bit)
In addition, the Small Business Server 2011 code base appeared on the Server 2008 R2:
- Windows Small Business Server 2011 Essentials and Standard
- Windows Small Business Server 2011 Premium Addon
- Minimum: 1.4 GHz ( x64 processor )
- Minimum: 512 MB RAM
- Maximum ( 64- bit systems): 32 GB (Standard Edition, Web Edition) or 2 TB ( Enterprise Edition, Datacenter Edition, and Itanium- based systems)
- Minimum: 32 GB free
- DVD -ROM drive,
- Super VGA (800 x 600) monitor or higher resolution monitor
- Keyboard and Microsoft Mouse or compatible pointing device
- Internet access