What is a VGA card?VGA card is a component whose job it is to produce a visual display of your computer. Virtually all programs produce visual output, VGA card is the hardware that gives commands to the monitor to display the visual output that we can see.
Graphics cardsA component of the system, usually in the form of expansion cards, which produces 2-dimensional image or 3 dimensional on screen. As one important part of your PC (other than the CPU), graphics card the binary ones and zeros of computing into the images that we can interact with it through the monitor screen. In other words, we can not use a computer in a different way this far without the help of advanced graphics technology.Important things to note:Graphics card can handle all 2D and 3D calculations and rendering, and take charge of such heavy weight of the CPU. Top quality graphics card costs about U.S. $ 300, though half of it you can find any other 3D graphics card is fast enough. Latest graphics chipset graphics card performance, and vendors release a new chipset from 6 to 12 months. Almost all modern graphics cards using the AGP slot (Accelerated Graphics Port) on your PC and have at least 16MB of memory.Only the latest 3D games and CAD (computer-aided design) high-end class that really make full use of the latest graphics card capabilities.Picture or image you see on the monitor takes a complex route in the PC. When you run an application wants to create an image, he will be seeking help on the part of the operating system that connects to the graphics card (called a graphics driver interface). In response, the graphics driver, software that acts as an intermediary for the OS (operating system / operating system) and graphics cards, listening to instructions from either the OS or the application, then take the necessary digital data and converts it into a format understood by graphics card them.Then, the drivers deliver formatted digital data is new to the graphics card for rendering. If you have a PC built on the year 1998, the data runs to the card through a slot on the motherboard called AGP (Accelerated Graphics Port / accelerated graphics port). PC has no AGP slots are usually used as a standard PCI slot graphics card port them.Dismissal of the first data, once pumped into the card, is a temporary storage space in memory, either in memory on the card itself or on a PC's main memory. Then the graphics card processor, called GPU (graphics processing units), convert digital data into pixels, a set of colored dots that make up the image you see on the screen. Volume of pixels produced by the board is very much: When your screen resolution set at 1024 times 768, the graphics card will calculate the amount of the right color for her, and generate data for as many as 786 432 pixels for screen-depicted and repeat this process as much as 30 up to 90 times per second.
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