CTIA And GTIA
Color Television Interface Adaptor (CTIA) and its successor Graphic Television Interface Adaptor (GTIA) are custom chips used in the Atari 8-bit family of computers and in the Atari 5200 console. In these systems, a CTIA or GTIA chip works together with ANTIC to produce video display. The chips were designed by George McLeod with technical assistance of Steve Smith.
Color Television Interface Adaptor and Graphic Television Interface Adaptor are names of the chips as stated in the Atari field service manual. Various publications named the chips differently, sometimes using the alternative spelling Adapter or Graphics, or claiming that the "C" in "CTIA" stands for Colleen/Candy and "G" in "GTIA" is for George.
Read more about CTIA And GTIA: History, Features, Versions, Player/Missile Graphics (sprites), GTIA Enhancements, Bugs