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Telegraph, Joseph Henry
The telegraph is a device that uses electrical signals to the transmission of messages with encrypted text. For example the morse code. -
Telephone, Alexander Graham Bell
In his documents put that the telephone was an instrument what was it for communicated, throught one wire. -
Radio, Guillermo Marconi
They were developed mainly for ship-to-shore and ship-to-ship communication. This form of radiotelegraphy allowed for simple communication between two points. -
Television, John Logie Baird
Is a device that transmits information throught images and sounds. -
Tablet, Alan Kay
The tablet also called Dynabook, was designed for the children that is similar to a PC, but easier to use. -
Mobile phone, Martin Cooper
Cooper invented mobile phones to communicate anywhere at any time. -
Computer, Charles Babbage
Was invented in orde to resolve mathematical calculations that were previously completed by people.