display hack

from Jargon File (4.4.4, 14 Aug 2003)
display hack
 n.

   A program with the same approximate purpose as a kaleidoscope: to make
   pretty pictures. Famous display hacks include {munching squares},
   {smoking clover}, the BSD Unix rain(6) program, worms(6) on
   miscellaneous Unixes, and the {X} kaleid(1) program. Display hacks can
   also be implemented by creating text files containing numerous escape
   sequences for interpretation by a video terminal; one notable example
   displayed, on any VT100, a Christmas tree with twinkling lights and a
   toy train circling its base. The {hack value} of a display hack is
   proportional to the esthetic value of the images times the cleverness
   of the algorithm divided by the size of the code. Syn.
   {psychedelicware}.
    
from The Free On-line Dictionary of Computing (8 July 2008)
display hack

   <graphics> A program with the same approximate purpose as a
   kaleidoscope: to make pretty pictures.  Famous display hacks
   include {munching squares}, {smoking clover}, the {BSD Unix}
   "rain(6)" program, "worms(6)" on miscellaneous Unixes, and the
   {X} "kaleid(1)" program.  Display hacks can also be
   implemented without programming by creating text files
   containing numerous escape sequences for interpretation by a
   video terminal; one notable example displayed, on any VT100, a
   Christmas tree with twinkling lights and a toy train circling
   its base.  The {hack value} of a display hack is proportional
   to the aesthetic value of the images times the cleverness of
   the algorithm divided by the size of the code.  Synonym
   {psychedelicware}.

   [{Jargon File}]

   (1995-05-10)
    

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