Motorola 6845 clone used also on IBM MDA and CGA adapters.
Motorola 6845 clone used also on IBM MDA and CGA adapters.
IBM MDA is text only card with 4kB memory and printer port. IBM CGA have also graphic modes and 16kB memory with TV support.
Palcal's cards:
Vlask's card:
CGA card probably from 1983, maybe older. Hitachi chip is older. Card have 32kB memory and is physically incompactible with 16bit ISA slots. Traded with Kamil Hałasiewicz.