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Telegraph / Joseph Henry
It is used to communicate in written form at a short distance. -
Telephone / Antonio Meucci
It is useful for remote communication. -
Radio / Guillermo Marconi
This is used to transmit information orally over long distances. -
Television / John Logie
Show images from a long distance. -
Computer / Konrad Zuse
This was used to calculate. -
Tablet / Alan Kay
This serves to be able to communicate long distance, being able to take it with you everywhere, and larger than the mobile. -
Mobile Phone / Martin Cooper
That serves to be able to communicate long distance, being able to take it with you everywhere.