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A system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection -
A system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals. -
Communication over distance when sounds are converted to electromagnetic waves and sent to a receiver that transfers the waves back to sounds -
A system for transmitting visual images and sound that are reproduced on screens -
A tablet is a wireless, portable personal computer with a touchscreen interface. The tablet is typically smaller than a notebook computer, but larger than a smartphone. -
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 -
An electronic device for storing and processing data