Telecommunications inventions

Telegraph- Samuel Morse

1843

Is the long-distance transmission of textual messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message.

Telephone- Alexander Graham Bell

1876

Is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly.

Radio- Gugliemo Marconi

1895

Is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz and 300 gigahertz. They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves, and received by a radio receiver connected to another antenna.

Television- Philo Farnsworth

1934

Is a telecommunication medium used for transmitting moving images in monochrome (black and white), or in color, and in two or three dimensions and sound.

Computer- John Presper Eckert and John Mauchly

1943

Is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.

Mobile phone- Martin Cooper

1973

Is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area.

Tablet- Jeff Hawkins

1989

It is a portable electronic device larger than a smartphone or a PDA, it is a single piece that integrates a touch screen that emits light and with which it interacts primarily with the fingers or a stylus.