The currently available versions of CoCoVGA is known to be compatible with some Color Computer mainboards and Dragons. This page will help you identify your Color Computer 1 or 2 to determine whether CoCoVGA will work in your system.
Note that the Color Computer 1 F board was commonly and may always have been also used in the TDP-100 and white "64k Color Computer" CoCo 1 style systems, depicted below.