connectors PCI PCI This bus specification is initially due to Intel who started work to 90. Version 1.0 is released June 22, 92 and the 2.0 30 April 93. The first implementation date of 94 on motherboards for processor Intel 80486. From there, the bus PCI quickly replaces the other present bus as the bus ISA. The revision 2.1, including specifications for the 66 MHz bus, released in 95. Since then, the evolution of the specifications of the bus PCI, as well as those of the bus AGP and of the PCI Express are managed by an interest group, the PCI Special Interest Group (PCI-SIG)open to industrialists. Since 2004, for devices fast (such as graphics cards), the bus PCI (and the) AGP ) is replaced by a smaller and faster version : the PCI Express.