:blitter: /blit'r/ n. A special-purpose chip or hardware system
built to perform {blit} operations, esp. used for fast
implementation of bit-mapped graphics. The Commodore Amiga and a
few other micros have these, but in 1991 the trend is away from
them (however, see {cycle of reincarnation}). Syn. {raster
blaster}.
-- The AI Hackers Dictionary
cycle of reincarnation: [coined by Ivan Sutherland ca. 1970] n.
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....