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Telegraph
Claude Chappe- Is an apparatus or device that uses electrical signals to trasmit encoded text messages. -
Telephone
Alexander Graham- Communication system that transmits voice and sound over long distance by electrical or electromacnetical means. -
Radio
Guillermo Marconi- A musical program is one whose fundamental element is music. -
Television
Philo Famsworth- Is a system of transmision of images and sounds in dinstance. -
Computer
Konard Zuse-It's a programable digital machine that executes eries of commands to process the input data. -
Tablet
Alan Kay- Is a portable electronic device largeter a smartphone or a PDA. -
Mobile phone
Martin Cooper- A telephone with access to a cellular radio system so it can be used over a wide area without physical connection to a network.
