IBM Colour Graphics Adapter
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The IBM Color Graphics Card was a full-length (13") 8-bit ISA card providing CGA colour graphics.
The card was fitted to the IBM Personal Computer XT and IBM Portable Computer.
Specifications
- CGA video, providing 320x200 4-colour graphics or 16-colour 80x25 text modes
- 16KB RAM
- DB9 'RGBI' socket for connection to a monitor (such as the IBM 5153 Color Display)
- RCA jack for connection to NTSC TV
- Motorla MC6845 CRT controller
Video Outputs
In addition to the two outputs on the rear of the card, the card had an internal composite output via a 4-pin header (P1), as used in the IBM Portable Computer to provide video its internal screen.