| Release date | 1983 |
|---|---|
| Manufactured by | Quadram Corporation |
| Cards | |
| Entry-level | Quadram Quadcolor I |
| High-end | Quadram Quadcolor II |
| History | |
| Predecessor | CGA |
The Quadram Quadcolor is a graphics card for IBM PC computers by Quadram Corporation, first sold in 1983. It is a superset of the then-current CGA standard, using the same monitor standard (4-bit digital TTL RGBI monitor or NTSC composite video) [1] [2] [3] and providing the same pixel resolutions.
The Quadcolor has twice the memory of a standard CGA board (32k, compared to 16k), [1] [2] and offers a 640 × 200 mode with two freely definable colours. [4] If used with the Quadcolor II enhancement board, the additional memory can be used in graphics modes to double the color depth, allowing for two additional graphics modes — 320 × 200 resolution with 136 colors, or 640 × 200 resolution with 16 colors. [2] [5]
This card is supported by Dr. Hallo II and Turbo Pascal Graphix Toolbox . [6] [7]
Quadram Quadcolor I offers the following modes: [4]
With the Quadcolor II enhancement board, Quadram Quadcolor offers the following modes: [5]
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