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Release date | 1982 |
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Manufactured by | Plantronics Enhanced Graphics Products |
Designed by | Frederick Electronics |
Architecture | Motorola MC6845 |
Cards | |
Entry-level | Plantronics Colorplus |
High-end | ATI Graphics Solution, Paradise AutoSwitch EGA 480 |
History | |
Predecessor | CGA |
Successor | EGA |
The Plantronics Colorplus is a graphics card for IBM PC computers, first sold in 1982. It implements a superset of the then-current CGA standard, using the same monitor standard (4-bit digital TTL RGBI monitor) and providing the same pixel resolutions.[1] It was produced by Frederick Electronics (of Frederick, Maryland), a subsidiary of Plantronics since 1968, and sold by Plantronics' Enhanced Graphics Products division.[2][3]
The Colorplus has twice the memory of a standard CGA board (32k, compared to 16k). The additional memory can be used in graphics modes to double the color depth, giving two additional graphics modes—16 colors at 320 × 200 resolution, or 4 colors at 640 × 200 resolution.[4]
It uses the same Motorola MC6845 display controller as the previous MDA and CGA adapters.[1]
The original card also includes a parallel printer port.