(pē-sē-ī ik-spres´) (n.) An I/O interconnect bus standard (which includes a protocol and a layered architecture) that expands on and doubles the data transfer rates of original PCI. PCI Express is a two-way, serial connection that carries data in packets along two pairs of point-to-point data lanes, compared to the single parallel data bus of traditional PCI that routes data at a set rate. Initial bit rates for PCI Express reach 2.5Gb/s per lane direction, which equate to data transfer rates of approximately 200MB/s. PCI Express was developed so that high-speed interconnects such as 1394b, USB 2.0, InfiniBand and Gigabit Ethernet would have an I/O architecture suitable for their transfer high speeds.
PCI Express, also known as 3GIO (for third-generation Input/Output) is compatible with existing PCI systems.
- PCI Express x16
The PCI Express x16 graphics interface (also called PCIe x16) offers increased bandwidth and scalability over the previous AGP8X generation. PCI Express x16 allows up to 4 GB/s of peak bandwidth per direction, and up to 8 GB/s concurrent bandwidth. PCI-Express x16 is used by the Intel 915 and 925 and other chipsets which support […]
- PCI SSC
Short for Payment Card Industry Security Standards Council (PCI SSC), it is the governing organization and open forum responsible for the development, management, education, and awareness of PCI Security Standards, including the Data Security Standard (PCI DSS) and the Payment Application Data Security Standard (PA-DSS).
- PCI Security Standards Council
The PCI (Payment Card Industry) Security Standards Council is an industry-led standards organization, founded by American Express, Discover Financial Services, JCB, MasterCard Worldwide and Visa International to provide a formalized standards body to manage the ongoing evolution of PCI Security Standards. The PCI Security Standards Council is responsible for the following tasks: Develop and manage […]
Short for PCI extended, an enhanced PCI bus. PCI-X is backward-compatible with existing PCI cards. It improves upon the speed of PCI from 133 MBps to as much as 1 GBps. PCI-X was designed jointly by IBM, HP and Compaq to increase performance of high bandwidth devices, such as Gigabit Ethernet and Fibre Channel, and […]
Abbreviation of Printer Control Language, the page description language (PDL) developed by Hewlett Packard and used in many of their laser and ink-jet printers. PCL 5 and later versions support a scalable font technology called Intellifont.