See the line

Which of these laptop communications methods requires line-of-sight to work properly?

A) 802.11

B) Bluetooth

C) Infrared

D) Modem


The answer: C) Infrared

Infrared connections allow for wireless communications to external devices, but it requires a clear line of sight between the laptop and the peripheral.

Want to know more? Watch “Laptop Communications.”

Today’s laptops employ many communications methods that use many different technologies. In this video, you’ll learn about Bluetooth, infrared, mobile broadband, Ethernet, and modems.