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TELEGRAPH - David Alter
It was used to send written messages without the need of letter, firstly with wires. -
COMPUTER - Konrad Zuse
A digital machine programmable that executes a group of commands to process the entering data, getting an information that lately is sended to the exit units. -
TELEPHONE - Alexander Graham Bell / Antonio Meucci
A communication system that transmits voice and sound at a long distance by electric or electromagnetic media.
It was created by Antonio Meucci, but Alexander Graham Bell patented it. -
RADIO - Nikola Tesla
Communication system based in sending audio signals through a radio waves. -
TELEVISION - John Logie Blaird
A system for the transmission of sounds and images at a certain distance that simulate movements that have been filmed. -
MOBILE PHONE - Martin Cooper
A mobile phone is a portable phone that can make or receive calls through a radiofrequency while the user is moving around an area of phone service. -
TABLET - Alan Kay
An electrical and tactyl device bigger than a mobile phone
