Insurance

Oct 11 2017

What is PCI (Peripheral Component Interconnect)? Definition from #define #pci

#

PCI (Peripheral Component Interconnect)

PCI (Peripheral Component Interconnect) is an interconnection system between a microprocessor and attached devices in which expansion slot s are spaced closely for high speed operation. Using PCI, a computer can support both new PCI cards while continuing to support Industry Standard Architecture (ISA ) expansion cards, an older standard. Designed by Intel, the original PCI was similar to the VESA Local Bus. However, PCI 2.0 is no longer a local bus and is designed to be independent of microprocessor design. PCI is designed to be synchronized with the clock speed of the microprocessor.

Download this free guide

Download: Buyer’s Guide to Windows Server 2016 in 2017

You may be due for an upgrade! Check out our full Windows Server 2016 Buyer’s Guide to see if a switch to the new server would be the best move for your organization.

By submitting your personal information, you agree that TechTarget and its partners may contact you regarding relevant content, products and special offers.

You also agree that your personal information may be transferred and processed in the United States, and that you have read and agree to the Terms of Use and the Privacy Policy .

PCI is now installed on most new desktop computers, not only those based on Intel’s Pentium processor but also those based on the PowerPC. PCI transmits 32 bits at a time in a 124-pin connection (the extra pins are for power supply and grounding) and 64 bits in a 188-pin connection in an expanded implementation. PCI uses all active paths to transmit both address and data signals, sending the address on one clock cycle and data on the next. Burst data can be sent starting with an address on the first cycle and a sequence of data transmissions on a certain number of successive cycles.

The PCI specifications define two different card lengths. The full-size PCI form factor is 312 millimeters long; short PCIs range from 119 to 167 millimeters in length to fit into smaller slots where space is an issue. Like the full-size PCI, the short PCI is a high-performance I/O bus that can be configured dynamically for use in devices with high bandwidth requirements. Most current PCI cards are half-sized or smaller. There are a number of variations of PCI, including CompactPCI, Mini PCI, Low-Profile PCI, concurrent PCI, and PCI-X .

Also see Extended Industry Standard Architecture (EISA ) and Micro Channel Architecture (MCA ).

This was last updated in September 2005

Related Terms

memory dump A memory dump is the process of taking all information content in RAM and writing it to a storage drive. Developers commonly use. See complete definition Microsoft Microsoft is a leading global vendor of computer software; hardware for computer, mobile and gaming systems; and cloud services. See complete definition operating system (OS) An operating system (sometimes abbreviated as “OS”) is the program that, after being initially loaded into the computer by a boot. See complete definition

Dig Deeper on Windows Operating System Management

Written by CREDIT


Leave a Reply

Your email address will not be published. Required fields are marked *