a tak przy okazji jako ciekawostka:
CTIA vs. GTIA
The original design of the CTIA chip also included three additional color interpretations of the normal graphics modes. This feature provides alternate expressions of ANTIC's high-resolution graphics modes presenting 1 bit per pixel, 2 colors with one-half color clock wide pixels as 4 bits per pixel, up to 16 colors, two-color clock wide pixels. This feature was ready before the computers' November 1979 debut, but was delayed so much in the development cycle that Atari had already ordered a batch of about 100,000 CTIA chips with the graphics modes missing. Not wanting to throw away the already-produced chips, the company decided to use them in the initial release of the Atari 400 and 800 models in the US market. The CTIA-equipped computers, lacking the 3 extra color modes, were shipped until October–November 1981.[5][6] From this point, all new Atari units were equipped with the new chip, now called GTIA, that supported the new color interpretation modes.[6][9]
The original Atari 800/400 operating system supported the GTIA alternate color interpretation modes from the start,[9] which allowed for easy replacement of the CTIA with the GTIA once it was ready. Atari authorized service centers would install a GTIA chip in CTIA-equipped computers free of charge if the computer was under warranty; otherwise the replacement would cost $62.52.[6][7]
GTIA was also mounted in all later Atari XL and XE computers and Atari 5200 consoles.
źródło: CTIA and GTIA
czyli wychodzi na to że Atari szkoda było wywalić 100 tysięcy niedorobionych układów i wcisnęli je do Atari 400/800 z pełną świadomością swojego czynu. Jak zwykle wszystko obraca się wokół kasy.
