TelegraphThe telegraph is a device that uses electrical signals to transmit coded text messages, such as Morse code, over wire lines or radio communications.
It was invented by Samuel Finley
TelephoneA telephone is a device that permits two or more users to have a conversation when they are too far away to talk directly.
It was invented by Graham Bell
RadioRadio is the remote transmission of sound through electromagnetic waves that are capable of reaching thousands of people quickly and simultaneously through a receiving device.
It was invented by Nikola Tesla and Guglielmo Marconi
televisionSystem of transmission of images and sounds at a distance by means of hertzian waves.
It was invented by John Logie Baird
ComputerElectronic machine that can store information and proces it automatically through mathematical and logical operations controlled by computer programs.
It was invented by Konrad Zuse
TabletA Tablet is a type of laptop, larger than a smartphone, integrated into a touch screen that interacts primarily with the fingers, without the need for a physical keyboard or mouse.
It was invented by Alan Kay
Mobile phoneThe mobile phone is an electronic wireless device that allows access to the cellular or mobile phone network.
It was invented by Martin Cooper