Graphics Cards – What does a graphics card do?


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What does a graphics card do?

A graphics card in your personal computer is basically used for converting the video data into electronic signals and then sends these signals to the monitor. The signals of graphics card are accepted by the monitor and then these signals are converted to different colourful images. This process continues at a fast speed for handling all the videos, movie clips, games and other such media. There is always a graphics card of some form, in every kind of standard computer.

You can easily understand that and get the answer of what does a graphics card do. Actually, a graphics card is a chipset in the computer mounted on a circuit board; its size is almost the same as an index card. A single task is to be performed by the chips and they are dedicated for that, i.e. taking the video data from the processor of the computer and converting it for signalling the monitor. In most of the computers, the graphics card chips are built on the motherboard with basic capabilities generally. Graphics cards that are more sophisticated are usually purchased by graphic designers and gamers because they deliver excellent quality of images and the graphics processing also becomes faster; they are plugged into the motherboard.

The images that are seen on the monitor screen are actually made up of very small dots known as pixels. In most of the settings of resolutions of a computer screen, commonly there are more than one million pixels. The computer decides for each pixel that how to use it with the help of the graphics card; the card works as a translator by taking the data from a computer in binary and converting it into an image. The job of a graphics card is surely complex; however, the principles, as well as the components can easily be understood. So it is simple to know the answer to the question what does a graphics card do.

The main components that are involved in the workings of a graphics card, are as follows:

  • Motherboard for making a connection between power and data
  • Process that decided what should be done with each pixel on the monitor screen
  • Memory for holding information about each of the pixel and for storing the completed images on temporary basis
  • Monitor connection to see the final output

The graphics cards are connected to a standard slot of a motherboard like a PCI. There maybe more than a number of connectors with the graphics card and they accept the cable of the monitor. It is literally an intensive task to produce accurate images on the screen while doing lots and lots of mathematical calculations in each 3D image in the frames. Most of the times, the processor is busy to do its other important jobs, so this task is handled by the graphics card. After reading all this, you would surely have got a rough idea of what does a graphics card do.