Which type of motherboard expansion slot sends data one bit at a time over a serial bus?

Which type of motherboard expansion slot sends data one bit at a time over a serial bus?

  • RAM
  • PCI
  • PCIe
  • PATA
    Explanation:

    A PCIe expansion slot connects to a serial bus that sends data one bit at a time at a much faster rate than the older PCI slot that connects to a parallel bus.

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