-
From his notebook, Alexander Graham Bell drafted the telephone.
-
-
In the 1940's US Army would use radio transmission to communicate messages in the field.
-
The commercial model was released in car phones. These phones used radio signals to communicate.
-
In 1983, the first commerical use cellphone was released for usage.
-
-
Currently, Smartphones such as the iPhone can be found all around the world.
