Who invented the touchscreen? It is so important that almost every person in the school has at least one touch device. But where did it come from?
https://www.youtube.com/watch?v=3Dx7gnq-QJ4
https://www.youtube.com/watch?v=y9ikU-R57AU
Who invented the touchscreen? It is so important that almost every person in the school has at least one touch device. But where did it come from?
https://www.youtube.com/watch?v=3Dx7gnq-QJ4
https://www.youtube.com/watch?v=y9ikU-R57AU