Types of PCI and latest advancements

PCI means Peripheral Component Interconnect. PCI is a computer bus for connecting hardware devices like graphic cards, network cards, modems, sound cards and other devices like TV Tuner cards. Some devices may already be soldered in to the motherboard according to the PCI configuration while some devices are expansion cards which can be upgraded or removed. There are different types of PCI according to the physical attributes and also the technology used. PCI standard bus is gradually being replaced by modified PCI versions called PCI-X and PCI-Express. PCI-X is a double wide version of PCI, which provides up to four times performance boost. It follows similar communication method with the CPU as PCI. PCI Express is another variant of PCI which is a high speed serial replacement for older PCI and PCI-X. PCI Express is a much developed and advanced version of PCI. But, as of now, many computers are still equipped with PCI slots which are sufficient for many users.