Wednesday, May 22, 2013

Different types of video cards for PC


Different types of video cards for PC
Video cards for PC are also known as graphic cards. These are hardware panels that are responsible for the production of images to display. These are indispensable for a computer to produce image display. Without a video card, images cannot be displayed on the monitor. For running the video card on PC, driver software is needed. The video driver is software that allows video cards compatibility with the PC. There are different video cards that can be installed on a PC. The video cards for PC are categorized under various parameters. On the basis of placement of video cards for PC, they are divided into two types: 
  •   Internal video cards for PC      
  •   External video cards for PC
The internal video cards are those that are placed inside the computer system. These video cards are meant to be installed inside the PC cabinet. They function as the video enhancer. These are present in almost every PC. The onboard graphics cards are the common examples of internal video cards. On the other hand, the external video cards are different from the internal video cards. These do not need to be installed in the PC cabinet. They can be connected with the PC by the use of USB or other ports to the PC. These video cards are special purpose cards. They do not affect or enhance the graphics. Instead, they are meant only for some special purposes. The most common example of these video cards is TV-Tuner graphic card.

Onboard video cards for PC
Onboard video cards are required by every PC for getting the image displayed on the monitor. This is very important that a PC must have the graphic card installed in it. Without graphics card, a PC cannot display images properly. The onboard graphic card comes with motherboard of the PC. This has ability to produce the required graphics. They are used in most of the computer systems. However, they do not have much efficiency, but they are enough to make a PC work with all the graphics easily. However, for playing high graphics games, you certainly need to upgrade the graphics card. There are many dedicated graphics cards that are designed entirely to support high end graphics. These have high memory and dedicated RAM that enhance the graphics of the PC. There are many companies that design these graphics cards. NVIDIA and ATI are the two leading computer graphics cards manufacturers of the world.

TV-tuner video cards for PC
The TV video cards for PC are different from the onboard graphics cards. They can be external or internal. They do not affect the graphics of the computer. In fact, they add up the other graphics that computer cannot produce. With TV turner video cards for PC, you can watch cable TV directly from the computer. This way, you can turn your computer to TV. The TV tuner card also allows you to use the PC as a DVR or Digital Video Recorder. You can record TV shows directly on the computer with TV video cards for PC.

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