telecommunications inventions

computer (Charles Babbage)

1822

Is an electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program.

Telegraph (Samuel Morse)

1836

Is a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.

telephone (Alexander Graham Bell)

1876

Is a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals.

radio (Nikola Tesla)

1901

Is the transmission and reception of electromagnetic waves of radio frequency, especially those carrying sound messages.

Television (John Logie Baird)

1926

Is a system for converting visual images (with sound) into electrical signals, transmitting them by radio or other means, and displaying them electronically on a screen.

tablet (Alan Kay)

1968

is a portable computer that uses a touchscreen as its primary input device.

mobile phone (Martin Cooper)

1973

Is a telephone with access to a cellular radio system so it can be used over a wide area, without a physical connection to a network.