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A computer is an electronic system used to store and process data. The computer takes data from the outside -
It is a device that allowed the transmission of data, instantly, while the electric telegraph was the first to use electrical signals for such purposes. Today it may seem strange, but its ability to radically speed up data transmission was not immediately appreciated -
Was Antonio Meusi and Alexander Graham Bell.The purpose was to connect his office with the bedroom so that he could talk to his sick wife immobile in bed due to a serious illness. -
to make the first wireless communication: he sent a message between Dover and Boulougne, a distance of 30 miles.. -
He invented television after several attempts to copy the electromagnetic wave system of the radio. With a great economic effort and without receiving help from investors -
for navigate quickly. They are characterized by being very light and are cheaper than a computer. In addition, they are more practical, since all their handling is done with the fingers -
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.