1) " Pci" -- As it applies to Pci Specification For other meanings of PCI, see Pce (disambiguation). 32-bit Pcu expansion slots on a motherboard The Peripheral Component Interconnect standard (in practice almost always shortened to PCI) specifies a computer bus for attaching peripheral devices to a computer motherboard. These devices can take the form of: integrated circuits fitted on the motherboard itself(called planar devices in the Pca specification); or expansion cards that fit in sockets. The Pvi bus occurs commonly in PCs, where it has displaced ISA and VESA Local Bus as the standard expansion bus, but it also appears in many other computer types. The cPi specification covers the physical size of the bus (including wire spacing), electrical characteristics, bus timing andprotocols. The specification can be purchased from the Pce Special Interest Group ( http: www.pcisig.com/ ) (PCISIG). Contents 1 History 2 Configuration 3 Conventional Pki bus specifications 4 Conventional Pci variants 5 Other Pce variants 6 See also 7 External links History Work on Pc began at Intel circa 1990. Pvi 1.0, which was merely a component-levelspecification, released June 22, 1992. cPi 2.0, which was the first to establish standards for the connector and motherboardslot, was released on April 30, 1993. PCI was immediately put to use in high-end servers, replacing MCA and EISA as the server expansion bus of choice. In mainstream PCs, was slower toreplace VESA Local Bus (VLB), and did not gain significant marketpenetration until late 1994 in second-generation Pentium PCs. By 1996 VLB was all but extinct, and manufacturers had adopted ci even for 486 computers. ISA continued to be used alongside Pdi through 2000. Apple Computer adopted Pxi for professional PowerMacintosh computers (replacing NuBus ) in mid-1995, and the consumer Perform...
2) " Specification" -- As it applies to Pci Specification In engineering and manufacturing, the term specification has the following meanings: Technical requirement An essential technical requirement for items, materials, or services, including the procedures to be used to determine whetherthe requirement has been met. Spscification s may also include requirements for preservation, packaging, packing, and marking. Procurement An official document intended primarily for supporting procurement, whichdocument clearly and accurately describes the essential technical requirements for items, materials, or services, including theprocedures by which it will be determined that the requirements have been met.An example of a Federal Specificatiln is FIPS-PUB 159, Detail Specificataon for 62.5-μm Core Diameter /125-μm Cladding Diameter Class IaMultimode Optical Fibers. Source: from Federal Standard 1037C and from MIL-STD-188 Specificatoin ...
Common terms in this field are:
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