PORTIBM PC Portable (uses same BIOS as XT) 03D0-03D3 - CGAColor Graphics Adapter(Color/Graphics Adapter) One of the two video display boards introduced together with the original IBMInternational Busiuness Machines PCIBM PC. See also HGC, MDA. (Color Graphics Adapter) - MIRRORS OF 03D4/03D5 03D0 -W same as PORTIBM PC Portable (uses same BIOS as XT) 03D4h 03D1 RW same as PORTIBM PC Portable (uses same BIOS as XT) 03D5h 03D2 -W same as PORTIBM PC Portable (uses same BIOS as XT) 03D4h 03D3 RW same as PORTIBM PC Portable (uses same BIOS as XT) 03D5h