systems operator

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

system operator
sysop
systems operator

   <job, jargon> (Always abbreviated to "sysop") /sis'op/ A term
   used in the {BBS} world for the operator of a bulletin-board
   system (who is usually also the owner).

   A common neophyte mistake on {FidoNet} is to address a message
   to "sysop" in an international {echo}, thus sending it to
   hundreds of sysops around the world.

   Contrast: {system administrator}.

   (1999-10-20)