Telegraph was the first device of the telecommunications age. It may seem primitive compared to today's technology....
The telephone came about as scientists tried to squeeze more out of the telegraph; understanding how to influence sound and send it over greater distances to more and more people....
Wireless was the next major step in telecommunication after the telephone....
Strictly speaking, the computer wasn't designed as a telecommunications device, but it has revolutionised communications to the point where it has become a personal communications centre.
