evolucion de sistemas operativos

Main

1980
1981
1984
1985
11/20/1985
12/09/1987
05/22/1990
08/1991
10/05/1991
07/27/1993
07/24/1995
06/25/1998
2000
10/25/2001
10/20/2004
2006
10/2008
2009
2009
2009
2010
2012
2012