CompactPCI Horizons: Year 2000 and BeyondPeripheral Component Interconnect (PCI), introduced by Intel in 1992, has successfully been adopted in many embedded applications besides desktop PCs. In the PC arena, PCI enables system designers to implement peripheral subsystems without worrying too much about frequent host processor upgrades. Other bus architectures like VESA couldn't provide this feature although, in terms of performance, they were competitive with PCI. In the embedded arena, many industrial and telecommunications applications demand efficient back-plane buses for data transfers. Although PCI was not initially intended to act like an industrial back-plane bus, it has successfully been utilized in many applications where traditionally other industrial bus protocols like ISA or VMEbus were dominant.
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