1995 Windows 95 True operating system designed to replace
Windows 3.x, Windows for Workgroups, and
MS-DOS for single-user desktop computers.
1998 Windows 98 For PC users. Implemented many bug fixes to
Windows 95, had more extended hardware
support, and was fully 32 bit. Not directly related
to Windows NT.
2000 Windows Millennium Last Windows operating system built on the
Edition (ME) Windows 95 code.
2001 Windows XP Home For PC users. A 32-bit operating system built to
succeed Windows 95 and 98, but built on the
Windows NT kernel.
2001 Windows XP For networking and power users, built on the
Professional Windows NT kernel. The Professional Edition was
available in 32-bit and 64-bit versions.
2007 Windows Vista Complex operating system with improved
diagnostic and repair tools.
2009 Windows 7 Available in six versions, most with 64-bit
addressing. Designed to address the stability
and response shortcomings of Windows Vista.