Denis Joseph Nexum Hardware.

Compaq Ait

Understanding of the speed of PCI Express data bus New

The personal computer is constantly changing with updates to these components for memory, processor speed and hard drive capacity.And the video display is no exception.

The video display consisting graphics card, monitor, and Bus.If you wonder what the heck is a bus at any screen video, sound the data path along which moves data to and from the computer inside the.

These data are sent motherboard and CPU to the graphics card, travel along the data path or bus, the controller where our eyes can see it.The data bus is in part responsible for our quick and clear graphics of our favorite games are shown.

It does not matter how speed chip processor or graphics card can send data if the bus is too small and prevents data from traveling fast.This causes a bottleneck data when the graphics card sends data faster than the bus can enable him to travel.

The first bus was developed by IBM or International Business Machines and has been called the Industry Standard Architecture Bus ISA.The has been slow and weak, because it sent data to a bit 4MHz.

But he was paired with the processor chip of that day.The average speed of the processor during this period was approximately 4.77MHz. This bus has arrived IBM in 1981 and established a faster bus, shortly after a 16-bit bus with a speed cpu MHz from August to October three years late.

At that time, many manufacturers computer others have been building computers using the design of IBM and IBM has responded quickly to competition by property
bus called the MCA or Micro Channel Architecture.

When IBM Built Buses owners they say they have built hardware or software, in this case bus, owned and controlled by a single individual or organization.

Bus technology has emerged in the following order.

1983 IBM introduced the ISA bus and 1984, the fastest 16-bit ISA Bus arrived.Then in 1987, the 32-bit MCA bus showed you here in 1988 Compaq and other PC manufacturers published the 32-bit EISA or Extended Industry Standard Architecture Bus

1993 brought us the Video Electronics Standards Association, or VESA Bus.This year also permit the release of the PCI, or Personal Computer Interconnect Bus.

And in 1996 came the AMP or Advanced Graphics Port in 1998 brought us the AGP 2.0 and in 2002 came, you got it, the AGP bus data 3.0.

Finally in 2005 Intel and AMD introduced computers running at speeds of 4Gigabytes more.At these speeds or AGP port presented to the slowdown in the data.

So the folks at Intel, their heads together and had the PCIe.The Personal Computer bus interconnection Express.The is like PCI, but uses a serial port while the PCI parallel use.

Ports send data in parallel idiots and serial ports send data to a time.With the PCI bus, each action in a maximum of 132MB a second and PCIe allow each slot have 250 megabytes per second to send data.

PCIe is designed to be used as an interconnection only.As local, it is based on the current PCI cards and systems can be adapted to PCI Express without any change of higher speeds on software.The PCIe allow it to replace almost all existing buses.

Almost all high-end graphics cards in 2006 of the AIT and NVIDIA use PCI Express.And Nvidia use the faster data transfer of PCIe for SLI or Scalable Link Interface technology.

This technology allows two graphics cards of the same chip and model number to be executed simultaneously. This greatly improve performance as you never thought possible.

Not to be outdone, ATI came on the scene with their dual-GPU or Graphics Processing Unit called the line of sight.

As you can see, the PCI Express is faster and, if possible, when buying your next computer, be sure it comes with PCI Express.

The AGP data bus was fast compared to ICH, but they are both away.So fading, it is very advantageous for you if you get to know PCIe and understand in detail.

About the Author

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