[net.micro.atari] CTIA vs GTIA

kevin (11/09/82)

I have an older Atari 400 with a CTIA graphics chip.  I have heard that
programs written for use with the new GTIA chip may not run with the
CTIA chip.  Can anyone tell me what the difference between these two
chips is?  Would it be worth the trouble to replace the CTIA with
a GTIA?
                       Kevin Sanders
                       UC San Diego