-
Telegraph
A telegraph is a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.
Inventor: David Alter -
Telephone
The telephone is a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals.
Inventor: Antonio Meucci, -
Radio
The radio is the technology of signaling and communicating
Inventors: Nikola Tesla and Guglielmo Marconi . -
Television
The television is a telecommunication medium used for transmitting moving images in monochrome, or in color, and in two or three dimensions and sound.
Inventor: John Logie Baird -
Computer
The computer is an electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program.
Inventor: Konrad Zuse -
Tamblet
Tablets can be thought of as small, handheld computers. They're smaller than a laptop but larger than a smartphone.
Inventor: Alan Kay -
Mobile phone
The Mobile phone 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.
Inventor: Martin Cooper
