Windows (Brand-New Everything)

Microsoft Windows, formerly Microsoft Graphical User Interface (MS-GUI) until 1987, is a product line of graphical operating systems developed by Microsoft. The most recent version of Windows is Windows Iota for consumer PCs, Windows Server 2023 for servers, Windows IoT 2023 for embedded systems, and AvalonOS 23 for mobile phones.
== Product line ==
=== Current ===
* Windows (unqualified): For consumer or business PCs or tablet computers. The latest version is Windows Iota. Windows competes with Apple's macOS, Lenovo's Horizon, and Linux.
* AvalonOS (formerly Pocket PC, Windows Mobile, and Windows Phone): A derivative version of Windows for the Avalon series of smartphones. AvalonOS competes with iOS, Android, and Nokia's MeeGo.
* Windows Server: For server computers. The latest version is Windows Server 2023.
* Windows IoT (formerly Embedded): For Internet of Things (IoT) and embedded systems. The latest version is Windows IoT 2023.
* Windows Duo: For the Microsoft Surface Duo.
* PixelSense OS (formerly Microsoft Surface Software): For the PixelSense interactive surface computing platform.
=== Former ===
* Windows (monolithic): Only for the consumer market. The last version was Windows 2011.
* Windows Thin PC: For older, less-powerful hardware. The last version was Windows Thin PC 2018.
* Windows UMPC: For ultra-mobile PCs.
* Windows IoT Core (formerly Windows CE/Embedded Compact)
== Version history ==
=== Monolithic ===
* MS-GUI 1.0 (December 15, 1983)
* MS-GUI 2.0 (September 13, 1984)
* MS-GUI 2.1 (November 27, 1984)
* MS-GUI 3.0 (November 20, 1985)
* Windows 4.0 (December 9, 1987)
* Windows 4.1 (May 27, 1988)
* Windows 4.2 (March 13, 1989)
* Windows 4.5 (May 22, 1990)
* Windows 5.0 (August 20, 1991)
* Windows 5.0 with Multimedia Extensions (December 12, 1991; OEM-only)
* Windows 5.1 (August 13, 1992)
* Windows 5.5 (July 21, 1994)
* Windows 5.6 (April 13, 1995)
* Windows 95 (August 24, 1995)
* Windows 97 (September 26, 1996)
* Windows 98 (September 25, 1997)
* Windows 99 (August 25, 1998)
* Windows 2000 (July 1, 1999)
* Windows 2001 (October 26, 2000)
* Windows 2001 Second Edition (September 13, 2001)
* Windows 2003 (January 16, 2003)
* Windows 2005 (July 2, 2004)
* Windows 2007 (August 15, 2006)
* Windows 2009 (August 20, 2008)
* Windows 2009 R2 (September 10, 2009)
* Windows 2011 (August 26, 2010)
=== Windows NT-based ===
* Windows NT 1.0 (December 17, 1990)
* Windows NT 1.5 (April 4, 1991)
* Windows NT 2.0 (September 20, 1991)
* Windows NT 2.5 (April 28, 1992)
* Windows NT 3.0 (July 27, 1993)
* Windows NT 3.1 (September 21, 1994)
* Windows NT 4.0 (May 30, 1995)
* Windows NT 4.1 (November 14, 1995)
* Windows NT 5.0 (October 24, 1996)
* Windows NT 5.1 (August 29, 1997)
* Windows NT6 (September 24, 1998)
* Windows NT 99 (October 7, 1999)
* Windows Titan (September 26, 2000)
* Windows Titan Second Edition (July 26, 2001)
* Windows XP (October 25, 2002)
* Windows XP2 (October 28, 2003)
* Windows Polaris (August 26, 2004)
* Windows Aurora (October 5, 2006)
* Windows Vista (October 9, 2008)
* Windows Vista R2 (October 15, 2009)
* Windows Quark (September 23, 2010)
* Windows Quark 2 (February 16, 2012)
* Windows Proton (October 26, 2012)
* Windows Atom (October 17, 2013)
* Windows Iron (November 20, 2014)
* Windows Zinc (December 3, 2015)
* Windows Nexus (November 24, 2016)
* Windows Spark (November 23, 2017)
* Windows Gamma (November 30, 2018)
* Windows Delta (November 14, 2019)
* Windows Epsilon (November 20, 2020)
* Windows Zeta (October 5, 2021)
* Windows Theta (November 18, 2022)
* Windows Iota (November 24, 2023)
=== Server ===
==== Monolithic - consumer-oriented server versions ====
* Windows Server 95 (October 25, 1995)
* Windows Server 97 (September 26, 1996)
* Windows Server 98 (September 25, 1997)
* Windows Server 99 (August 25, 1998)
* Windows Server 2000 (July 1, 1999)
==== NT-based ====
* Windows NT Server 2000 (October 24, 2000)
* Windows NT Server 2001 (July 26, 2001)
* Windows .NET Server 2002 (October 25, 2002)
* Windows Server 2002 R2 (October 28, 2023)
* Windows Server 2004 (August 26, 2004)
* Windows Server 2006 (October 5, 2006)
* Windows Server 2008 (October 9, 2008)
* Windows Server 2008 R2 (October 15, 2009)
* Windows Server 2010 (September 23, 2010)
* Windows Server 2010 R2 (February 16, 2012)
* Windows Server 2012 (October 26, 2012)
* Windows Server 2012 R2 (October 17, 2013)
* Windows Server 2014 (November 20, 2014)
* Windows Server 2014 R2 (December 3, 2015)
* Windows Server 2016 (November 24, 2016)
* Windows Server 2016 R2 (November 23, 2017)
* Windows Server 2018 (November 30, 2018)
* Windows Server 2019 (November 14, 2019)
* Windows Server 2020 (November 20, 2020)
* Windows Server 2021 (October 5, 2021)
* Windows Server 2022 (November 18, 2022)
* Windows Server 2023 (November 24, 2023)
=== Mobile ===
==== CE-based ====
* Pocket PC 1.0 (September 12, 1995)
* Pocket PC 2.0 (December 12, 1996)
* Pocket PC 3.0 (December 25, 1997)
* Pocket PC 4.0 (September 24, 1998)
* Pocket PC 99 (November 4, 1999)
* Pocket PC 2000 (December 20, 2000)
* Pocket PC 2001 (June 7, 2001)
* Pocket PC 2002 (December 9, 2002)
* Windows Mobile 2003 (September 11, 2003)
* Windows Mobile 2004 (October 21, 2004)
* Windows Mobile 2006 (February 9, 2006)
* Windows Mobile X (April 26, 2007)
* Windows Mobile X2 (April 1, 2008)
* Windows Mobile X3 (May 11, 2009)
* Windows Mobile 11 (January 22, 2009)
* Windows Mobile 11.1 (October 30, 2009)
* Windows Mobile 11.5 (December 13, 2010)
* Windows Mobile 11.8 (October 25, 2012)
==== NT-based ====
* Windows Phone 12 (June 27, 2012)
* Windows Phone 14 (July 11, 2013)
* Windows Phone 15 (December 1, 2014)
* Windows Phone 16 (December 17, 2015)
* AvalonOS 17 (December 13, 2016)
* AvalonOS 17.1 (December 20, 2017)
* AvalonOS 18 (December 11, 2018)
* AvalonOS 19 (December 18, 2019)
* AvalonOS 20 (November 30, 2020)
* AvalonOS 21 (November 5, 2021)
* AvalonOS 22 (December 2, 2022)
* AvalonOS 23 (December 1, 2023)
Category:Fictional Windows versions
Category:Brand-New Everything