Question: what are the different types of windows operating systems?
Answer: MS-DOS - Microsoft Disk Operating System (1981) ...  Windows 1.0 – 2.0 (1985-1992) ...  Windows 3.0 – 3.1 (1990–1994) ...  Windows 95 (August 1995) ...  Windows 98 (June 1998) ...  Windows ME - Millennium Edition (September 2000) ...  Windows NT 31. ...  Windows 2000 (February 2000)