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Computer
The first mechanical computer was created in 1822 by Charles Babbage.
It is a programmable digital electronic machine that executes a series of commands to process the input data, conveniently obtaining information that is subsequently sent to the output units -
Telegraph
Developed in the 1844 by David Alter, the telegraph revolutionized long-distance communication. It worked by transmitting electrical signals over a wire laid between stations. -
Telephone
It was invented by Antonio Meucci, who in 1854 built his first prototype.
A few years later, in 1876, Alexander Graham Bell was the first to formally patent it, and for many years, together with Elisha Gray, they were considered the inventors of the telephone. -
Mobile phone
Alexander Graham Bell patented the telephone in 1876, referred to as a device that transmitted sounds through a wire through electrical signals. Bell was long considered the inventor of the telephone, along with Elisha Gray. -
Radio
One hundred years ago, on December 12, 1901, the Italian physicist Guillermo Marconi invented the radio, connecting Europe and America for the first time by means of a radiotelegraphic signal. -
Television
The first commercial television was created on January 26, 1926 by Scotsman John Logie Baird.
It begins with the capture of images and sounds at the source, and their emission and diffusion through different media. The television has become a common, everyday and normal household appliance with a wide presence in homes around the world. -
Tablet
It was the American engineer Alan Kay who first proposed something very similar to a tablet in 1968.
It is a portable electronic device larger than a smartphone, it is a single piece that integrates a touch screen that emits light and with which you interact primarily with your fingers, without the need for a physical keyboard or mouse.