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the electromagnetic telegraph was bulit
Carl F.Gauss and Ernst H. Weber build the electromagnetic telegraph. The telegraph was the first step to making electrical signals travel from one device to another. -
transmitting the spoken words
hilipp Reis develops a “telephon.” Reis's phone was the first instrument to transmit the spoken word. -
princilpile of telephone
Alexander Graham Bell discovers the principle of the telephone. -
numbers rather than names
Telephone subscribers began to be designated by numbers rather than names. This allows more subscribers per switching station. -
Long distance service
Long distance service was established and grew using metallic circuits. -
flow of electronics in a vacuum
Thomas A. Edison discovers flow of electronics in a vacuum, called the "Edison effect," the foundation of the electronic tube. -
The first automatic dial system
the first automatic dial system was patented by a Kansas City undertaker. Switchboard operators were no longer necessary to make a telephone call. -
wireless communication
Oliver Lodge demonstrates wireless communication over a distance of 150 yards. This is the beginnings of cell phone technology. -
pay phone
The first pay phone was est. in Hartford, Connecticut. -
transcontinental telephone line
Bell System completes a U.S. transcontinental telephone line. Everyone in the US was connected to each other. -
Automatic switching
Automatic switching of large numbers of calls was made possible using “phantom circuits,” which allowed three telephone conversations to be conducted on two pairs of wires. More people could use the same circuit so telephone companies did not have to build more switching stations. -
commercial mobile telephone
First commercial mobile telephone service put into service in 1946, linking moving vehicles to the telephone network by radio. -
switched faster than before
The electronic telephone switching system is placed into service. Calls are switched faster than before -
cellular phones
"Pocket" cellular telephone is introduced by Motorola. -
Digital signal processing
Digital signal processing of all telecommunication equipment (including ISDNs and HDTV) A television can now be used as a television, telephone, computer and video game center all in one place. -
technology
technology is now used around the world globaly mostly on cumputers. now we can talk on the phone while on the internet and to make calls face to face from thousands miles away! over all most things we use are with phone computers! and digital things.