wheel of reincarnation

   [coined  in a paper by T.H. Myer and I.E. Sutherland On the Design of
   Display  Processors, Comm. ACM, Vol. 11, no. 6, June 1968)] Term used
   to  refer  to  a  well-known  effect  whereby function in a computing
   system  family is migrated out to special-purpose peripheral hardware
   for speed, then the peripheral evolves toward more computing power as
   it  does  its  job,  then  somebody notices that it is inefficient to
   support two asymmetrical processors in the architecture and folds the
   function  back  into  the  main  CPU, at which point the cycle begins
   again.

   Several   iterations   of   this   cycle   have   been   observed  in
   graphics-processor  design, and at least one or two in communications
   and  floating-point  processors. Also known as the Wheel of Life, the
   Wheel  of  Samsara,  and other variations of the basic Hindu/Buddhist
   theological idea. See also {blitter}.

[glossary]
[Reference(s) to this entry by made by: {cycle of reincarnation}]