Index: Doc/library/os.rst
===================================================================
--- Doc/library/os.rst	(revision 77319)
+++ Doc/library/os.rst	(working copy)
@@ -1884,7 +1884,8 @@
    Execute the command (a string) in a subshell.  This is implemented by calling
    the Standard C function :cfunc:`system`, and has the same limitations.
    Changes to :data:`sys.stdin`, etc. are not reflected in the environment of the
-   executed command.
+   executed command. The output results of the command will be shown in python command
+   line.
 
    On Unix, the return value is the exit status of the process encoded in the
    format specified for :func:`wait`.  Note that POSIX does not specify the meaning
@@ -1894,7 +1895,7 @@
    On Windows, the return value is that returned by the system shell after running
    *command*, given by the Windows environment variable :envvar:`COMSPEC`: on
    :program:`command.com` systems (Windows 95, 98 and ME) this is always ``0``; on
-   :program:`cmd.exe` systems (Windows NT, 2000 and XP) this is the exit status of
+   :program:`cmd.exe` systems (Windows NT, 2000, XP, Vista and 7) this is the exit status of
    the command run; on systems using a non-native shell, consult your shell
    documentation.