Which of these is a disadvantage of IrDA?
A) Interference is common with devices such as cordless phones and microwave ovens
B) Requires a direct line of sight
C) Requires a wireless provider contract
D) Requires a specific category of network cabling
E) Requires a diet of protein and self-doubt
The answer: B) Requires a direct line of sight
Infrared was relatively common on printers and laptops, but the direct line-of-sight limitations and the popularity of 802.11 wireless networks has caused IrDA ports to disappear from most devices.
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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. |
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