control-o

from Jargon File (4.4.4, 14 Aug 2003)

control-O
 vi.

   "Stop talking." From the character used on some operating systems to
   abort output but allow the program to keep on running. Generally means
   that you are not interested in hearing anything more from that person,
   at least on that topic; a standard response to someone who is flaming.
   Considered silly. Compare {control-S}.

from The Free On-line Dictionary of Computing (8 July 2008)

control-O

   <character> {ASCII} character 15 (SI).

   The character used on some {operating systems} to abort output
   but allow the program to keep on running.  The name "SI" comes
   from its use on some terminals to "shift in" an alternative
   character set.  "SO" is {Control-N}.

   Compare {control-S}.

   [{Jargon File}]

   (1995-03-16)

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