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

Question:
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.

Exam with this question: IT Essentials (ITE v7) Chapter 2 Exam Answers
Exam with this question: IT Essentials (Version 8.0) Chapter 2 Exam