History of windows according to events

• 1983–Bill Gates announces Microsoft Windows November 10, 1983.
• 1985–Microsoft Windows 1.0 is introduced in November 20, 1985 and is initially  sold for $100.00.
• 1987 –Microsoft Windows 2.0 was released December 9, 1987 and is initially sold for $100.00.
• 1987– Microsoft Windows/386 or Windows 386 is introduced December 9, 1987 and is initially sold for $100.00.
• 1988 –Microsoft Windows/286 or Windows 286 is introduced June, 1988 and is initiall \sold for $100.00.
• 1990 –Microsoft Windows 3.0 was released May, 22 1990. Microsoft Windows 3.0 full version was priced at $149.95 and the upgrade version was priced at $79.95.
• 1991– Following its decision not to develop operating systems cooperatively with IBM, Microsoft changes the name of OS/2 to Windows NT.
• 1991– Microsoft Windows 3.0 or Windows 3.0a with multimedia was released October,1991.
• 1992 –Microsoft Windows 3.1 was released April, 1992 and sells more than one million copies within the first two months of its release.
• 1992 –Microsoft Windows for Workgroups 3.1 was released October, 1992.
• 1993 –Microsoft Windows NT 3.1 was released July 27, 1993.
• 1993– Microsoft Windows 3.11, an update to Windows 3.1 is released December 31, 1993.
• 1993– The number of licensed users of Microsoft Windows now totals more than 25 million.
• 1994– Microsoft Windows for Workgroups 3.11 was released February, 1994.
• 1994 –Microsoft Windows NT 3.5 was released September 21, 1994.
• 1995– Microsoft Windows NT 3.51 was released May 30, 1995.
• 1995– Microsoft Windows 95 was released August 24, 1995 and sells more than one million copies within 4 days.
• 1995– Microsoft Windows 95 Service Pack 1 (4.00.950A) is released February 14, 1996.
• 1996– Microsoft Windows NT 4.0 was released July 29, 1996.
• 1996 –Microsoft Windows 95 (4.00.950B) aka OSR2 with FAT32 and MMX support is released August 24, 1996.
• 1996– Microsoft Windows CE 1.0 was released November, 1996.
• 1997– Microsoft Windows CE 2.0 was released November, 1997.
• 1997– Microsoft Windows 95 (4.00.950C) aka OSR2.5 is released November 26, 1997.
• 1998– Microsoft Windows 98 was released June, 1998.
• 1998 –Microsoft Windows CE 2.1 was released July, 1998.
• 1998 –In October of 1998 Microsoft announced that future releases of Windows NT would no longer have the initials of NT and that the next edition would be                          Windows 2000.
• 1999– Microsoft Windows 98 SE (Second Edition) was released May 5, 1999.
• 1999– Microsoft Windows CE 3.0 was released 1999.
• 2000– On January 4th at CES Bill Gates announces the new version of Windows CE will be called Pocket PC.
• 2000– Microsoft Windows 2000 was released February 17, 2000.
• 2000 –Microsoft Windows ME (Millennium) released June 19, 2000.
• 2001– Microsoft Windows XP is released October 25, 2001.
• 2001– Microsoft Windows XP 64-Bit edition (Version 2002) for Itanium systems is released March 28,2003.
• 2003– Microsoft Windows Server 2003 is released March 28, 2003.
• 2003– Microsoft Windows XP 64-Bit edition (Version 2003) for Itanium 2 systems is released on March 28, 2003.
• 2003– Microsoft Windows XP Media Center edition 2003 is released on December 18,2003.
• 2004– Microsoft Windows XP Media Center edition 2005 is released on October 12, 2004.
• 2005– Microsoft Windows XP Professional x64 edition is released on April 24, 2005.
• 2005– Microsoft announces it’s next operating system, codenamed “Longhorn” will be named Windows Vista on July 23, 2005.
• 2006– Microsoft releases Microsoft Windows Vista to corporations on November 30, 2006.
• 2007– Microsoft releases Microsoft Windows Vista and Office 2007 to the general public January 30, 2007.
• 2008 Microsoft releases Microsoft Windows Server 2008 to the public on February 27,2008.
• 2009– Microsoft releases Windows 7 October 22, 2009.
• 2012– Microsoft releases Windows Server 2012 on September 4, 2012.
• 2012– Microsoft releases Windows 8 October 26, 2012.
• 2015– Microsoft releases Windows 10 on July 29, 2015.