Have you heard about the Hangeul writing system that Koreans use? Koreans have used Hangeul since its invention in 1443 by King Sejong. Hangeul is quite different from the written character sets of neighboring countries such as China and Japan.
Hangeul consists of 14 consonants and 10 vowels; these 24 characters can cover almost every spoken sound. In particular, the consonants of Hangeul are easy to learn because the characters were patterned after human speech organs and the stroke-adding principle, which adds strokes to basic characters to create new characters. Thanks to these features, Hangeul is recognized as one of the most scientific and logical character sets of the information era.
I can feel this feature when I send text messages in Hangeul through cell phones, one of the representative information devices of our time.