| Year | Operating System Name | Creators |
|---|
| 1956 | GM-NAA I/O | Robert L.Patrick |
| 1961 | MCP(Master Control Program) | Burroughs Corporations |
| 1966 | DOS/360 | IBM |
| 1969 | Unix | Ken Thompson,Dennis Ritchei, Douglas Mcllroy and Joe Ossanna at Bell Laboratory |
| 1973 | CP/M(Control Program/Monitor) | Greg Kildall |
| 1977 | BSD(Berkeley Software Distribution) | University of California, Berkeley |
| 1981 | Ms-DOS | Microsoft |
| 1982 | SunOS | Sun Microsystems |
| 1987 | OS/2 | IBM and Microsoft |
| 1991 | Linux | Linus Torvalds |
| 1992 | Sun Solaris | Sun Microsystems |
| 1993 | Windows NT | Microsoft |
| 1995 | Windows95 | Microsoft |
| 1997 | JavaOS | SunMicrosystems |
| 1998 | Windows98 | Microsoft |
| 1999 | MacOS X Server 1.0 | Apple Computer |
| 2000 | Windows2000 | Microsoft |
| 2000 | Windos ME(windows Millenium) | Microsoft |
| 2001 | MacOS X Version 10.0 | Apple Computer |
| 2001 | Windows XP | Micosoft |
| 2003 | Windows Server 2003 | Microsoft |
| 2007 | Windows Vista | Microsoft |
| 2008 | Windows Server 2008 | Microsoft |
| 2009 | Windows 7 | Microsoft |
| 2012 | Windows 8 | Microsoft |
| 2013 | Windows 8.1 | Microsoft |
| 2014 | Windows 10 | Microsoft |
