PCI

• Expansion slots(PCI)

  Computer bus used by the computer to connect to peripheral add-on devices
• PCI

  Peripheral Component Interconnect
• PCI-E

  Peripheral Component Interconnect Express
• PCI slots

  • Connect to peripheral add-on devices
  • Can be found in both PC's and Macs
  • Displaced previous computer buses (VESA Local Bus and ISA)
  • Still found in most computers because many expansion devices don't need PCI-E capabilities
• PCIe

  is a High-speed serial computer expansion bus standard designed to replace the older PCI, PCI-X, and AGP bus standards
• PCIe

  • include Higher maximum system bus throughput
  • Lower I/O pin count and smaller physical footprint
  • Better performance scaling for bus devices
  • Detailed error detection and reporting mechanism (Advanced Error Reporting, AERⅢ)
  • Native hot-plug functionality
  • Hardware support for I/O virtualization
• PCI

  Still found in most computers because many expansion devices don't need PCI-E capabilities
• PCI


  Displaced previous computer buses (VESA Local Bus and ISA)
• PCI Express x1 Slots

  Slots for modern expansion cards such as sound cards, network cards (Ethernet, wifi, Bluetooth), connectors cards (usb, firewire. eSATA), and certain low-end graphics cards
• PCI expansion slot was introduced by Intel
• PCIe Express x16 Slot is The Slot for discrete graphic cards and high bandwidth devices such as top-end solid state drives.