Quadram Quadcolor
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] and providing the same pixel resolutions.
| Release date | 1983 |
|---|---|
| Manufactured by | Quadram Corporation |
| Designed by | Quadram Corporation |
| Cards | |
| Entry-level | Quadram Quadcolor I |
| History | |
| Predecessor | CGA |
| Successor | EGA |
Description
The Quadcolor has twice the memory of a standard CGA board (32k, compared to 16k).[1] The additional memory can be used in graphics modes to double the color depth, giving two additional graphics modes — 136 colors at 320 × 200 resolution, or 16 colors at 640 × 200 resolution.
Models
- Quadram Quadcolor I
- Quadram Quadcolor II[2]
Output capabilities
CGA compatible modes:
- 320 × 200 in 4 colors from a 16 color hardware palette.
In addition to the CGA modes, it offers:
- 320 × 200 with 136 colors
- 640 × 200 with 16 colors
See also
- Tandy Graphics Adapter, a graphics hardware system with similar capabilities.
- Plantronics Colorplus
- Hercules InColor Card
- Orchid Graphics Adapter
References
- "Quadcolor 1". Total Hardware 1999 – Jumper settings for 18655 devices.
- "Manuals – Quadram". minus zerodegrees (−0º) IBM 51xx PC Family Computers. Retrieved 2023-09-04.
External links
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