Li-Fi the digital equivalent of Morse code

Q.  Which technology has been dubbed as the ‘digital Morse code’?
- Published on 25 Feb 16

a. Bluetooth
b. Optical fiber
c. Li-Fi
d. Wi-Fi

ANSWER: Li-Fi
 
    ‘Li-Fi’, the technology aims to transmit internet communications via visible light.
  • The technology uses the frequencies generated by LED bulbs — which flicker on and off imperceptibly thousands of times a second — to beam information through the air, leading it to be dubbed the “digital equivalent of Morse Code”.
  • This LED light can be used to illuminate the house or office as well as used to connect to the internet.
  • As each micron-sized LED could also act like a pixel on a screen, the technology could also be used to display images.

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