This is a listing of the versions of the operating systems offered by [[Microsoft]] as [[Microsoft Windows|Windows]].
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<!--==Contemporary Versions==
By DareDevil No2
[[Windows XP]] and [[Windows Server 2003]] are the current versions of Windows. Windows XP is designed for desktop computers, while Windows Server 2003 is designed for servers and comes in four different versions: Web Edition, Standard Edition, Enterprise Edition and Datacenter Edition. Web Edition is designed mostly for [[web hosting]], while Datacenter is the flagship product for extremely high end infrastructure. Standard and Enterprise fall in the middle.-->
==Current versions==
*[[Windows CE]] for embedded systems including Consumer Electronics products (note: CE is a different operating system from DOS and Windows NT/2000/XP, and Microsoft makes the source code available)
*[[Windows Mobile]] for smart phones and PDAs (a version of Windows CE)[[Image:Ms windows xp home edition box.jpg|right]]
**Portable Media Center for Digital Media Players
*[[Windows XP]] for desktops and [[laptop]]s (notebooks)
**[[Windows_XP#Windows_XP_Starter_Edition|Windows XP Starter Edition]], for new computer users in developing countries
**[[Windows XP|Windows XP Home Edition]], for home desktops and laptops
**[[Windows_XP#Windows_XP_Home_(and_Professional)_Edition_N|Windows XP Home Edition N]], as above, but without a default installation of [[Windows Media Player]], as mandated by an EU ruling
**[[Windows XP|Windows XP Professional Edition]], for business and power users
**[[Windows_XP#Windows_XP_Home_(and_Professional)_Edition_N|Windows XP Professional Edition N]], as above, but without a default installation of [[Windows Media Player]], as mandated by an EU ruling
**[[Windows_XP_Professional_x64_Edition|Windows XP Professional x64 Edition]], for PCs with 64-bit processors (based on Windows Server 2003)
**[[Windows_XP#Windows XP_for_specialized_hardware|Windows XP Tablet PC Edition]], for notebooks with a [[touch screen]] or a pen-sensitive screen
**[[Windows XP Media Center Edition]] for desktops and notebooks with an emphasis on audio, video, and [[Personal video recorder|PVR]] capability
*[[Windows Server 2003]] for servers
**Small Business Server for first server installations (up to 2 processors)
**Web Edition for basic web serving (up to 2 processors)
**Standard Edition for smaller server applications that don't require clustering (up to 4 processors)
**Enterprise Edition for larger server applications, and clustering (up to 8 processors)
**Datacenter Edition for mainframe like servers (up to 128 processors)
**[[Storage]] Server for Network Attached Storage Devices
** [[1995]] [[June]] - [[Windows NT|Windows NT 3.51]] (Version number: NT 3.5.1057)
** [[1996]] [[July 29]] - [[Windows NT 4.0]] - the last version which ran on [[RISC]] architectures like [[DEC Alpha]], [[MIPS architecture|MIPS]] and [[PowerPC]]. Later versions concentrated on x86-based hardware and - mainly as server OSs - the IA-64 line of CPUs. (Version number: NT 4.0.1381)
** [[2001]] [[October 25]] - [[Windows XP 64-bit Edition]] - A version of Windows XP roughly analogous to [[Windows XP Professional]] for Intel's IA-64 (Itanium) line of CPUs. It was discontinued in early 2005 after manufacturers stopped shipping Itanium systems marketed as 'workstations'.
==Cancelled versions==
* [[1991]]-[[1998]] - [[Cairo (operating system)|Cairo]] (a "true object-oriented OS") planned after Windows NT
* [[1999]] [[December]] - [[Windows Neptune]] was sent out to beta testers but was never released. Should have been a consumer version (i.e. home edition) of Windows 2000.
==Future versions==
* [[2006]] - [[Windows Vista]] (previously known by its codename '''Longhorn''') is scheduled to be released.
* [[2007]] - [[Windows Longhorn Server|Longhorn Server]] (probably '''Windows Server 2007'''; announced to continue the year-based naming scheme and estimated for 2007)
* [[2011]] - Windows codename "[[Windows_Blackcomb |Blackcomb]]" (estimate only, no release target officially announced)
* Windows [[Eiger (Software)|Eiger]] - is in early development, designed for old machines.
Revision as of 12:41, 15 January 2006
This is a listing of the versions of the operating systems offered by Microsoft as Windows.
Current versions
Windows CE for embedded systems including Consumer Electronics products (note: CE is a different operating system from DOS and Windows NT/2000/XP, and Microsoft makes the source code available)
Windows Mobile for smart phones and PDAs (a version of Windows CE)File:Ms windows xp home edition box.jpg
1996July 29 - Windows NT 4.0 - the last version which ran on RISC architectures like DEC Alpha, MIPS and PowerPC. Later versions concentrated on x86-based hardware and - mainly as server OSs - the IA-64 line of CPUs. (Version number: NT 4.0.1381)
2001October 25 - Windows XP 64-bit Edition - A version of Windows XP roughly analogous to Windows XP Professional for Intel's IA-64 (Itanium) line of CPUs. It was discontinued in early 2005 after manufacturers stopped shipping Itanium systems marketed as 'workstations'.
Cancelled versions
1991-1998 - Cairo (a "true object-oriented OS") planned after Windows NT
1999December - Windows Neptune was sent out to beta testers but was never released. Should have been a consumer version (i.e. home edition) of Windows 2000.
Future versions
2006 - Windows Vista (previously known by its codename Longhorn) is scheduled to be released.
2007 - Longhorn Server (probably Windows Server 2007; announced to continue the year-based naming scheme and estimated for 2007)
2011 - Windows codename "Blackcomb" (estimate only, no release target officially announced)
Windows Eiger - is in early development, designed for old machines.