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Updated section on expansion cards and RAM (#31416)

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Added more information about expansion cards and RAM, cleaned up sentences
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2018-12-14 22:23:08 +00:00
committed by Christopher McCormack
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guide/english/computer-hardware/index.md
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@ -18,7 +18,7 @@ The motherboard houses many of the crucial electronic components of a system, su
![Motherboard](https://fthmb.tqn.com/mmTUdCN6UBGIKlkEggGq4fpV-3k=/768x0/filters:no_upscale()/gig-57c732ed3df78c71b60e7aa5.jpg)
### Expansion Cards
Expansion cards are printed circuit board that can be inserted into a computer motherboard to add functionality to a computer system via the expansion bus.
Expansion cards are printed circuit board that can be inserted into a computer motherboard to add functionality to a computer system via the expansion bus. It can either add capabilities, like allowing for a new type of I/O port, or upgrade existing ones, such as increasing audio quality via sound cards or increasing ethernet speed through a network card. Expansion cards are typically added to the computer by putting them in to the motherboard's available PCI-Express slots.
An example of extension cards is the Graphics Processing Unit (GPU). A GPU is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device.
![Nvidia Titan XP](https://cdn.arstechnica.net/wp-content/uploads/2017/04/nvidia-titan-x.jpg)