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    Color Graphics Adapter - Wikipedia

    https://en.wikipedia.org/wiki/Color_Graphics_Adapter

    The Color Graphics Adapter (CGA), originally also called the Color/Graphics Adapter or IBM Color/Graphics Monitor Adapter, introduced in 1981, was IBM's first color graphics card for the IBM PC and established a de facto computer display standard. See more

    Hardware design

    The original IBM CGA graphics card was built around the Motorola 6845 display controller, came with 16 kilobytes of video memory built in, and featured several graphics and text modes. The highest display resolution of … See more

    Standard graphics modes image
    Standard text modes

    CGA offers four BIOS text modes (called alphanumeric or A/N modes in IBM's documentation). In these modes, individual pixels on … See more

    Further graphics modes and tweaks

    A number of official and unofficial features exist that can be exploited to achieve special effects.
    • In 320×200 graphics mode, the background color (which also affects the border color), which defaults to black on mode initialization, … See more

    Overview image
    Color palette image
    Output capabilities

    CGA offered several video modes.
    Graphics modes:
    • 160×100 in 16 colors, chosen from a 16-color palette, utilizing a specific configuration of the … See more

    Composite output image
    Further graphics modes and tweaks image
    Color palette

    CGA uses a 16-color gamut, but not all colors are available at all times, depending on which graphics mode is being used. In the medium- and … See more

    Standard graphics modes

    CGA offers graphics modes at three resolutions: 160×100, 320×200 and 640×200. In all modes every pixel on the screen can be set directly, but the color depth for the higher modes does not permit selecting freely from the full 16-color palette. See more

    Composite output

    Using the composite output instead of an RGBI monitor produced lower-quality video, due to NTSC's inferior separation between luminance … See more

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  2. Color Graphics Adapter – Wikipedia

    https://de.wikipedia.org/wiki/Color_Graphics_Adapter

    CGA (Color Graphics Adapter, ursprünglich auch Color/Graphics Adapter oder IBM Color/Graphics Monitor Adapter) war die erste von IBM im Jahr 1981 eingeführte farbfähige Grafikkarte und der erste Farbgrafikkarten-Standard für IBM-PCs. Bis zur Einführung von EGA war er Standard für Anwendungen, die jeden Bildpunkt einzeln adressieren mussten. Das Video-RAM umfasste 16384

    Wikipedia · Text under CC-BY-SA license
    • 2 – Grün: 6 – Gelb
    • Hintergrund: 5 – Magenta
    • 3 – Cyan: 7 – Hellgrau
  3. People also ask
    What do the four color bits on a graphics card mean?
    The lower three bits represent red, green, and blue color components The fourth "intensifier" bit, when set, increases the brightness of all three color components (red, green, and blue). [8] When using a direct-drive monitor, the four color bits are output directly to the DE-9 connector at the back of the card.

    Color Graphics Adapter - Wikipedia

    en.wikipedia.org/wiki/Color_Graphics_Adapter
    Search for: What do the four color bits on a graphics card mean?
    Can you change the color of the CGA?
    Notably, the GW-BASIC and Microsoft QBASIC programming languages included with MS-DOS supported all the text modes of the CGA with full color control, but did not provide a normal means through the BASIC language to switch the CGA from blink mode to 16-background-color mode.

    Color Graphics Adapter - Wikipedia

    en.wikipedia.org/wiki/Color_Graphics_Adapter
    Search for: Can you change the color of the CGA?
    Where is the character set defined on a graphics card?
    The character set is defined by hardware code page 437 . The font bitmap data is only available to the card itself, it cannot be read by the CPU. In graphics modes, text output by the BIOS operates by copying text from the font ROM bit-by-bit to video memory.

    Color Graphics Adapter - Wikipedia

    en.wikipedia.org/wiki/Color_Graphics_Adapter
    Search for: Where is the character set defined on a graphics card?
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  4. Color Graphics Adapter – Wikipedia

    https://sv.wikipedia.org/wiki/Color_Graphics_Adapter
    • CGA-grafikkort arbetade med CRT RGBI-färgmonitorer. De baserades på Motorolas kontrollkrets MC6845och hade en palett bestående av 16 färger. Röd, grön och blå motsvarade de tre elektronkanonerna i bildröret och svart färg betydde att signalen till dem nästan var avstängd. Färgen Cyan var en blandning av blå och gröna strålar, magenta mellan blå och...
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    • 0 — black #000000: 8 — (dark) gray, #545454
    • 2 — green #00A800: 10 — bright green, #54FE54
    • 1 — blue #0000A8: 9 — bright blue, #5454FE
    • 3 — cyan #00A8A8: 11 — bright cyan, #54FEFE

  5. Color Graphics Adapter - Wikipedia

    https://bs.wikipedia.org/wiki/Color_Graphics_Adapter

    WebColor Graphics Adapter (CGA), predstavljen 1981, bio je IBM -ova prva kolorna grafička kartica (ispočetka prodana pod imenom "Color/Graphics Monitor Adapter"), i prvi …

    • 0 — crna #000000: 8 — (tamno) siva, #555555
    • 2 — zelena #00AA00: 10 — svijetla zelena, #55FF55
    • 1 — plava #0000AA: 9 — svijetlo plava, #5555FF
    • 3 — cijan #00AAAA: 11 — svijetla cijan, #55FFFF

  6. Color Graphics Adapter — Wikipédia

    https://fr.wikipedia.org/wiki/Color_Graphics_Adapter
    • L'architecture de la carte graphique CGA d'IBM a été conçue autour du contrôleur Motorola 6845[2] adressant une mémoire vidéo de 16 kilooctets, pour permettre de gérer différents modes d'affichage, graphiques ou texte : la résolution d'écran, quel que soit le mode, était 640×200 pixels, et le codage des couleursse faisait sur 4 bits (soit 16 couleu...
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    • Color Graphics Adapter - Wikipedia

      https://it.wikipedia.org/wiki/Color_Graphics_Adapter

      WebLa Color Graphics Adapter (originariamente Color/Graphics Monitor Adapter ), introdotta nel 1981, è stata la prima scheda video a colori prodotta da IBM e il primo standard per i …

    • Color Graphics Adapter - Wikipedia

      https://ja.wikipedia.org/wiki/Color_Graphics_Adapter

      WebCGA (Color Graphics Adapter)は1981年のオリジナルのIBM PC用の最初のグラフィックカードとして登場し、初期には Color/Graphics Adapter や IBM Color/Graphics Monitor …

    • Talk:Color Graphics Adapter - Wikipedia

      https://en.wikipedia.org/wiki/Talk:Color_Graphics_Adapter

      WebThe RGBI color model translates the digital TTL bits to analogue voltage factors of 0, 1/3, 2/3, 3/3. On a digital scale from 0 to 255, that translates to 0, 55, AA, FF. Since the VGA's …

    • Color Graphics Adapter - Wikiwand

      https://www.wikiwand.com/en/Color_Graphics_Adapter

      WebThe Color Graphics Adapter , originally also called the Color/Graphics Adapter or IBM Color/Graphics Monitor Adapter,[1] introduced in 1981, was IBM's first color graphics …

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