Quadram Quadcolor
| 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.
Description
[edit]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. Halo II and Turbo Pascal Graphix Toolbox.[6][7]
Models
[edit]Output capabilities
[edit]Quadram Quadcolor I offers the following modes:[4]
- 320 × 200 with 4 colors (standard CGA mode)
- 640 × 200 with 2 colors (from a 4-bit RGBI hardware palette)
With the Quadcolor II enhancement board, Quadram Quadcolor offers the following modes: [5]
- 320 × 200 with 136 colors (obtained from a mix of two 16 color palettes)[5]
- 640 × 200 with 16 colors (4-bit RGBI hardware palette).[1][5]
See also
[edit]- Tandy Graphics Adapter, a graphics hardware system with similar capabilities.
- Plantronics Colorplus
- Hercules InColor Card
- Orchid Graphics Adapter
References
[edit]
- ^ a b c "Quadcolor 1". Total Hardware 1999 – Jumper settings for 18655 devices.
- ^ a b c "QUADCOLOR 1". arvutimuuseum.ee. Retrieved 2023-12-05.
- ^ Longley, Dennis; Shain, Michael (1985-06-18). Expanding and Networking Microcomputers: Most Comprehensive Guide for Apple II and I. B. M.Personal Computers. Springer. p. 28. ISBN 978-1-349-07625-3.
- ^ a b c Quadcolor I Operation Manual (PDF). Quadram Corporation. p. 2.
- ^ a b c d e Quadcolor II - Operation Manual (PDF). Quadram Corporation. pp. 1, 21, 22.
- ^ a b c Maltais, Sylvain (2020). "Logiciel - Dr. HALO II - Carte vidéo supporté". www.gladir.com. Retrieved 2023-12-05.
- ^ a b c Turbo Pascal Graphix Toolbox (PDF). Borland International, Inc. 1985. p. 14.
- ^ "Manuals – Quadram". minus zerodegrees (−0º) IBM 51xx PC Family Computers. Retrieved 2023-09-04.
External links
[edit]- Quadram Quadcolor I and II Drivers
- Quadram Quadcolor I – Operation Manual
- Quadram Quadcolor II – Operation Manual
- Quadram Quadjet manual
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