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Releases edit
| Version | Marketing Name | Editions | Processor Architectures | Release Date | RTM Build |
|---|---|---|---|---|---|
| NT 3.1 | Windows NT 3.1 | Workstation (named just Windows NT), Advanced Server | x86, Alpha, R4000 | July 27 1993 | 528 |
| NT 3.5 | Windows NT 3.5 | Workstation, Server | x86, Alpha, R4000 | September 21 1994 | 807 |
| NT 3.51 | Windows NT 3.51 | Workstation, Server | x86, Alpha, R4000, PPC | May 30 1995 | 1057 |
| NT 4.0 | Windows NT 4.0 | Workstation, Server, Server Enterprise Edition, Terminal Server, Embedded | x86, Alpha, R4000, PPC | July 29 1996 | 1381 |
| NT 5.0 | Windows 2000 | Professional, Server, Advanced Server, Datacenter Server | x86 | February 17 2000 | 2195 |
| NT 5.1 | Windows XP | Home, Professional, 64-bit Edition, Media Center (original, 2003, 2004 & 2005), Tablet PC (original and 2005), Starter, Embedded, Home N, Professional N | x86, Itanium | October 25 2001 | 2600 |
| NT 5.1 | Windows Fundamentals for Legacy PCs | N/A | x86 | July 8 2006 | 2600 |
| NT 5.2 | Windows XP | 64-bit Edition Version 2003[1] | Itanium | March 28 2003 | 3790 |
| NT 5.2 | Windows Server 2003 | Standard, Enterprise, Datacenter, Web, Storage, Small Business Server, Compute Cluster | x86, Itanium (RTM); x64 (SP1) | April 24 2003 | 3790 |
| NT 5.2 | Windows XP | Professional x64 Edition | x64 | April 25 2005 | 3790 |
| NT 5.2 | Windows Home Server | N/A | x86 | July 16, 2007 | 3790 |
| NT 6.0 | Windows Vista | Starter, Home Basic, Home Premium, Business, Enterprise, Ultimate, Home Basic N, Business N | x86, x64 | Business: November 30, 2006 Consumer: January 30, 2007 |
6000 |
| NT 6.0 | Windows Server 2008 | Standard, Enterprise, Datacenter, Web, Storage, Small Business Server | x86, Itanium, x64 | February 27, 2008 | 6001 |
| NT 6.1 | Windows 7 (codenamed Blackcomb, later Vienna) | Starter, Home Basic, Home Premium, Professional, Enterprise and Ultimate | x86, x64 | October 27 2009 | 7600 |
Note: NT 3.1 to 3.51 incorporate Program Manager and File Manager. NT 4.0 to 6.0 replace this with Windows Explorer (including a taskbar and Start menu).
The first release was given version number 3.1 to match the contemporary 16-bit Windows; magazines of that era claimed the number was also used to make that version seem more reliable than a '.0' release. There were also some issues related to Novell IPX protocol licensing, which was apparently limited to 3.1 versions of Windows software.
The NT version number is no longer used for marketing purposes, but is still used internally, and said to reflect the degree of changes to the core of the operating system.[2] The build number is an internal figure used by Microsoft's developers and beta testers.
- ^ "Microsoft Releases Windows XP 64-Bit Edition Version 2003 to Manufacturing". 2003. Retrieved 2008-01-14.
{{cite web}}: Unknown parameter|month=ignored (help) - ^ Mark Russinovich (2001). "Windows XP: Kernel Improvements Create a More Robust, Powerful, and Scalable OS". Retrieved 2006-12-19.
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