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The telegraph is an electrical device capable of transmitting text messages. To do this, it uses coding, by means of Morse code, in electrically emitted signals. -
Mobile phones are used for a variety of purposes, such as keeping in touch with family members, conducting business, and in order to have access to a phone in the event of an emergency. -
Radio (understood as radio or broadcasting, terms not strictly synonymous) is a means of communication that is based on the sending of audio signals through radio waves, although the term is also used for other forms of sending remote audio such as internet radio. -
Television is a system for the transmission and reception of images and sounds at a distance that simulate movements, which uses a diffusion mechanism. -
It is used to store and process data. The computer takes data from the outside (through the input units), stores it in its memory, processes it and sends it to the operator (through the output units). -
There are tablets that have a generous screen and that do not make you miss the laptop. Perhaps the best thing about a tablet is that you take it anywhere, without weighing you down and with good autonomy. -
to send and receive messages, check the time and use the alarm. The least performed activities are those called useful, such as using the calculator, making bank transfers, using the agenda and applications with GPS.