telecomunication inventions

First telegraph (André-Marie Ampère-David Alter)

1832

In 1835 the first telegraphic model appeared in Morse. Morse's apparatus, which issued the first public telegram in 1844, was shaped like an electrical switch. Through the pressure of the fingers, it allowed the passage of the current for a certain period of time and then canceled it.

First telephone (Alexander Graham Bell)

Jan 14, 1876

The operation of his creature is simple: a membrane vibrates with sound, touching a piece of iron. When the membrane and the metal sheet come into contact and vibrate, an electromagnet placed next to it varied its magnetic field, inducing an electric current.
It weighed 800 grams and had dimensions of 33 centimeters high, 4.5 wide and 8.9 thick.

radio(Guillermo Marconi)

1897

Radio is the signaling and communication technology using radio waves. Radio waves are electromagnetic waves with a frequency between 30 hertz and 300 gigahertz.

Television(John Logie Baird)

1926

Television is a system for the transmission and reception of images and sounds at a distance that simulate movements, which uses a diffusion mechanism

computer (Konrad Zuse)

1938

Electromechanical in operation and using relays, it was programmable (using perforated tape) and used a binary system and boolean logic.

mobile phone(Dr. Martin Cooper.)

1973

The Motorola DynaTAC 8000X was the first handheld cellular phone that allowed people to make longer distance calls than just a landline phone. It did not require any lines or cords to be attached to make a call.