evolucion de los sistemas operativos By cruz moy Period: Jan 1, 1981 to Jan 1, 1981 MS-DOS Period: Jan 1, 1985 to Jan 1, 1985 Microsoft Windows 1.0 Period: Jan 1, 1990 to Jan 1, 1990 Microsoft Windows 3.0 Period: Jan 1, 1992 to Jan 1, 1992 Microsoft Windows 3.1