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The Color Graphics Adapter (CGA), originally also called the Color/Graphics Adapter or IBM Color/Graphics Monitor Adapter, [1] introduced in 1981, was IBM's first color graphics card for the IBM PC and established a de facto computer display standard.
With built-in joystick ports, 16-color graphics and multichannel sound, the Tandy 1000 was considered the best platform for IBM PC-compatible games before the VGA era, and the combination of its graphics and sound became a de facto standard, "Tandy compatible". [1] 28 of 66 games that Computer Gaming World tested in 1989 supported Tandy ...
The Hercules Graphics Card was released to fill a gap in the IBM video product lineup. When the IBM Personal Computer was launched in 1981, it had two graphics cards available: the Color Graphics Adapter (CGA) and the Monochrome Display And Printer Adapter (MDA).
The display adapter uses a DE-15 connector, sometimes referred to as HD-15. MCGA is similar to VGA in that it had a 256-color mode (the 256-color mode in VGA was sometimes referred to as MCGA) and uses 15-pin analog connectors. The PS/2 chipset's limited abilities prevent EGA compatibility and high-resolution multi-color VGA display modes.
When using IBM's Color Graphics Adapter (CGA) with a NTSC TV as a composite monitor, the separation between luminance and chrominance is imperfect, yielding cross-color artifacts. This is especially a problem with 80-column text.
A different set of 16 simultaneous colors is available using an NTSC TV or composite monitor by using artifact color techniques, with independent groups having demonstrated much larger color sets of over 256 colors See Color Graphics Adapter#High color depth. The CGA RGBI palette is a variant of the 4-bit RGBI schema, arranged internally like ...
640 × 480 with 256 colors from a palette of 4,096 [2] (12-bit RGB palette, or 4 bits per color component). Color Graphics Adapter text and graphics modes. Text modes use a font with 8×16-pixel character cells [1] and have 400 rows of pixels. [3] There are six possible color arrangements: [2]
Plantronics 320 × 200 with 16 colors graphics resolution, corrected for aspect ratio Plantronics 640 × 200 with 4 colors graphics resolution, corrected for aspect ratio. CGA compatible modes: 160 × 100 16 color mode (actual a text mode using , , and ) 320 × 200 in 4 colors from a 16 color hardware palette. Pixel aspect ratio of 1:1.2.
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