Peripheral Component Interconnect is a local computer bus for attaching hardware devices in a computer and is part of the PCI Local Bus standard. The PCI bus supports the functions found on a processor bus but in a standardized format that is independent of any given processor's native bus.

What are PCI devices?

A PCI device is any piece of computer hardware that plugs directly into a PCI slot on a computer's motherboard. PCI, which stands for Peripheral Component Interconnect, was introduced to personal computers by the Intel Corporation in 1993. ... The PCI bus is not as fast as the system bus.

What is a PCI device example?

A network interface card is one example of a PCI device. ... The two most popular are the mini PCI and wireless adapter cards. Wireless network cards are integrated into the motherboard of desktop computers. The mini PCI is the device that is preinstalled in most laptop computers.