Below is a list of Windows Server names, code names, release dates and minimum specifications:

Windows Server Public NameCodenameRelease DateKernal VersionMin CPUMax CoresMin RAMMin Disk
Windows for Workgroups 3.1SnowballNov 19933.1125 MHz13 MB10.5 MB
Windows NT 3.1 Advanced ServerRazzle NT OS2Aug 1993NT 3.1025 MHz216 MB90 MB
Windows NT 3.5 ServerDaytonaSep 1994NT 3.525 MHz216 MB90 MB
Windows NT 3.51ServerDaytonaJun 1995NT 3.5125 MHz216 MB90 MB
Windows NT 4.0 ServerCairoJul 1996NT 4.033 MHz432 MB150 MB
Windows 2000 ServerJanusFeb 2000NT 5.0133 MHz32128MBl,000 MB
Windows Server 2003Whistler ServerApr 2003NT 5.2400 MHz64512 MBl,500 MB
Windows Server 2003 R2R2Mar 2006NT 5.2400 MHz64512 MBl,500 MB
Windows Server 2008Longhorn ServerFeb 2008NT 6.0l,000 MHz64512 MB20,000 MB
Windows Server 2008R2Server 7Oct 2009NT 6.1l,400 MHz64512 MB32,000 MB
Windows Server 2012Server 8Sep 2012NT 6.2l,400 MHz320512 MB32,000 MB
Windows Server 2012 R2BlueOct 2013NT 6.3*l,400 MHz320512 MB32,000 MB
Windows Server 2016RedstoneSep 2016NT 10.0*1400 Mhz512512 MB32,000 MB
Windows Server 2016 R2Redstone 2Fall 2018NT 1x.x*1400 Mhz512512 MB32,000 MB
* For applications that have been manifested for Windows 8.1 or Windows 10.
Applications not manifested for Windows 8.1 or Windows 10 will return the Windows 8 OS version value (6.2).

FUN FACT: “NT” stood for “New Technology” so you can see why Microsoft had to change the NT branding to something actually new.

You may find the following links useful if you want more details:


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