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Telegraph-David Alter
It's a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection. -
Telephone-Antonio Meucci
It's a system used to send speech or data over distances that functions as the transmitter and receiver. -
Radio-Guillermo marconi
It's the technology of sounds signaling and communication using radio waves. -
Television-Philo Taylor Farnsworth
It's a system of transmission of images and sound at a distance through Hertz waves. -
Computer-Konard Zuse
It's a programmable usually electronic device that can store, retrieve, and process data typically in binary forma -
Tablet-Alan Kay
It's a mobile computing device designed to use a touch screen as their primary input device with the option to connect external devices, such as a keyboard. -
Mobile phone-Martin Cooper
It's a portable system cordless with access to a cellular radio system so it can be used over a wide area, without a physical connection to a network.
