A machine sent the earliest text messages through a pattern of long and short beeps

This code is communicated with your hands and is used by those who can't speak vocally.

This code communicates using flags over distances.

This code uses 1s and 0s to transfer data

Gottfried Leibniz developed this number system that computers use to communicate.

Developed by Claude Chappe who used flags to communicate during war time.

Developed by Thomas Hopkins Gallaudet who opened a school in Connecticut.

Developed by Louis to learn without his eyesight.

Developed by Samuel to send information using sound or lights.