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Is a machine or device that performs processes, calculations and operations based on instructions provided by a software or hardware program. They are designed to execute applications and provide a variety of solutions by combining integrated hardware and software components. -
A telegraph works by transmitting electrical signals over wires. Has both a transmitter and a receiver. The transmitter is the telegraph or transmission key. -
Is the electrical system of communication that you use to talk directly to someone else in a different place. -
Sound communication by radio waves, usually through the transmission of music, news, and other types of programs from single broadcast stations to multitudes of individual listeners equipped with radio receivers. -
An electronic system of transmitting transient images of fixed or moving objects together with sound over a wire or through space by apparatus that converts light and sound into electrical waves and reconverts them into visible light rays and audible sound. -
A tablet is a wireless, portable personal computer with a touchscreen interface. The tablet form factor is typically smaller than a notebook computer, but larger than a smartphone. -
The first mobile was developed by the motorola company, yhanks to the engineer Martin Cooper. The mobile phone means of wireless comunication through electromagnetic wavesñ
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