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Computer, Charles Babbage
A computer is an electronic system 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). -
telegraph, Samuel Morse
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. -
telephone, Alexander Graham Bell
The phone is used to call other people and communicate with them. -
Radio, Guillermo Marconi
The radio it 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 remote audio transmission such as Internet radio. -
television, John Logie Baird
Television is a system for the transmission and reception of images and sounds at a distance that simulate movements, which uses a diffusion mechanism. -
Tablet, Alan kay
Tablets use a touch-sensitive screen so you can type and 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. -
Mobil phone, Martin Cooper
The mobile phone allows teams to connect from anywhere and provides access to the documents and materials necessary to carry out collaborative work. Mobile devices and the Internet have made it possible to hold teleconferences, online meetings, video calls, etc.