Infrared

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Infrared resides in a region of the electromagnetic spectrum just beyond the red end of our visible spectrum. Infrared wireless technology uses infrared beams to pass data across a network. Your television remote uses infrared technology to send requests to the television set. Speeds can reach a maximum of 16Mbps and signals are used for short-distance communications.
Infrared can eliminate the need for those pesky cables that connect your keyboard or mouse to your PC and cause clutter in your workspace. On the other hand, infrared may be easily refracted or reflected so it should not be used near windows or glass objects.

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