Changes

==History==

==History==

On June 22, 1992, Intel released their new bus, named Peripheral Component Interconnect, to enable support of a variety of new hardware.<ref name="computerhope">http://www.computerhope.com/jargon/p/pci.htm</ref>  When first introduced, the bus could run at the same speed as the [[Central processing unit|central processor]], about 133MB/s.  For this reason, only one PCI port was offered on the [[motherboard]]. However, as processors have evolved, they have become capable of processing speeds much greater than Peripheral Component Interconnect buses.  For this reason, most computer now can support more than one card simultaneously.<ref>http://computer.howstuffworks.com/pci1.htm</ref> As PCI proved a useful addition to the computer, it was updated several times.  PCI version 2.0 was released about a year later in 1993, and in 1995, PCI 2.1 was released as an expansion to the ISA bus.<ref name="computerhope"/>

On June 22, 1992, Intel released their new bus, named Peripheral Component Interconnect, to enable support of a variety of new hardware.<ref name="computerhope">http://www.computerhope.com/jargon/p/pci.htm</ref>  When first introduced, the bus could run at the same speed as the [[Central processing unit|central processor]], about 133MB/s.  For this reason, only one PCI port was offered on the [[motherboard]].<br />

However, as processors have evolved, they have become capable of processing speeds much greater than Peripheral Component Interconnect buses.  For this reason, most computer now can support more than one card simultaneously.<ref>http://computer.howstuffworks.com/pci1.htm</ref> As PCI proved a useful addition to the computer, it was updated several times.  PCI version 2.0 was released about a year later in 1993, and in 1995, PCI 2.1 was released as an expansion to the ISA bus.<ref name="computerhope"/><br />

In 2002, PCI was replaced by PCI Express (also known as 3rd Generation I/O (3GIO) or PCIe). Using its "lanes" (wires) in full duplex mode, PCIe is able to perform more quickly, since data can be sent in both direction at the same time on each lane.  It can communicate at about 250MB/s.<ref>http://www.computerhope.com/jargon/p/pciexpre.htm</ref>

In 2002, PCI was replaced by PCI Express (also known as 3rd Generation I/O (3GIO) or PCIe). Using its "lanes" (wires) in full duplex mode, PCIe is able to perform more quickly, since data can be sent in both direction at the same time on each lane.  It can communicate at about 250MB/s.<ref>http://www.computerhope.com/jargon/p/pciexpre.htm</ref>