Wiktionary(3.00 / 1 vote)Rate this definition: 1  exclusion(Noun) The act of excluding or shutting out; removal from consideration or taking part. 2  exclusion(Noun) The act of pushing or forcing something out. 3  exclusion(Noun) An item not covered by an insurance policy.
The Peripheral Component Interconnect or more commonly known as PCI is a standard for connecting a lot of devices inside your computer to extend its capabilities. Devices like sound cards, modems, NIC, TV Tuners, and some video cards have at some point or another have used the PCI port. The latest version of PCI known as PCI express is a much improved version in terms of speed. PCIe uses a serial interface instead of the old parallel interface used by PCI. It also utilizes individual buses for each of the devices connected to it instead of a shared one like what PCI uses.
With regards to information security, PCI stands for the Payment Card Industry. PCI data security standards (PCI DSS) help ensure financial data security. PCI Compliance ensures that organizations that deal with credit card and payment card data are taking proper measures to protect customer financial data.he term PCI is frequently used in relation to both financial data security standards and also adding hardware to PC computers. PCI at WordPress.com has information on PCI, what does PCI stand for, PCI DSS and PCI Compliance.