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Telegraph is a system of sending messages over long distances, either by means of electricity or by radio signals.
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Communication system that transmits voice and sound over long distances by electrical or electromagnetic means
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Telecomunicación que se realiza por medio de ondas radioeléctricas
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System for the transmission of images and sounds at a distance by means of Hertzian waves.
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an electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program.
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The tablets were born out of a project that emerged in the late 1960s. The idea was developed by a visionary named Alan Kay.
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A mobile phone or cell phone is a portable phone that can make or receive calls through a radio frequency carrier, while the user is moving within a telephone service area
