CompTIA video card

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Video cards connect to motherboards by way of x16 PCIe (most common, typically black), AGP (brown), or PCI (white) expansion slots. Video connector types include DVI, VGA, HDMI, DisplayPort, S-Video and component Video/RGB. Common color depths include 16-bit, 24-bit and 32-bit. Common resolutions include XGA (1024×76, WXGA (1280×720), SXGA+ (1280×1024), UXGA (1600×1200), WSXGA+ (1680×1050) and WUXGA (1920×1200).


Alternatively known as a display adapter, graphics card, video adapter, video board, or video controller, a video card is an IC or internal board that creates a picture on a display. Without a video card, you would not be able to see this page.


Video card ports

The picture above is an example of a video card with three connections, or video ports, on the back.

  • VGA connector
  • S-Video connector
  • DVI connector

In the past, VGA or SVGA was the most popular connection used with computer monitors.Today, most flat panel displays use the DVI connector or HDMI connector (not pictured above).


Video card expansion slots

In the picture above, the video card is inserted into the AGP expansion slot on the computer motherboard. Over the development of computers, there have been several types of expansion slots used for video cards. Today, the most common expansion slot for video cards is PCIe, which replaced AGP, which replaced PCI, which replaced ISA.


[bs_icon name=”glyphicon glyphicon-exclamation-sign”] Note: Some OEM computers and motherboards may have a video card on-board or integrated into the motherboard.

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