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The exchange of epistolary letters arose in ancient Egypt in the 25th century before Cristo. Letter exchange is a written and lasting communication between two people through paper letters, where information, thoughts and emotions are shared.The exchange of letters helped maintain and strengthen communication over distances, facilitated the debate of ideas between intellectuals and politicians, and served as a form of artistic and literary expression.The Greeks invented the exchange of letters. -
Printing is a method of reproducing text and images on paper or other materials, invented by Johannes Gutenberg in Mainz, Germany, around 1450.Printing is a mechanism for reproducing text and images on a large scale by applying ink to a material, such as paper or fabric. -
The telephone was patented by Alexander Graham Bell in 1876.The telephone is a telecommunication device for transmitting sounds over a distance using electrical signals.The device allowed the transmission of sound by cable, converting voice vibrations into electrical signals and vice versa. -
Guglielmo Marconi invented the radio in 1897.Radio is a mass and sound communication medium that transmits information, education, culture and entertainment through electromagnetic waves.On the radio you can listen to music and news.The first radio broadcast was made by Reginald Fessenden on December 24, 1906. -
Television is an audiovisual communication medium that transmits moving images and sound over a distance.The invention of television is primarily attributed to John Logie Baird, who gave the first public demonstration of moving images in 1926.Television is an audiovisual communication medium that transmits moving images and sound over a distance. -
Communication satellites are relay stations in space that receive and amplify radio, television, data, and voice signals from Earth and retransmit them to other locations.The theoretical concept of communication satellites was proposed by the writer Arthur C. Clarke in 1945. -
Optical fiber is a transmission medium that uses thin glass or plastic strands to transmit data in the form of light pulses, enabling high-speed, long-range connections thanks to the phenomenon of total internal reflection. This material is lighter, more durable, and more resistant to interference than traditional copper, making it a fundamental technology for the internet and modern telecommunications.Peter C. Schultz and Thomas Mensah invented optical fiber in 1953. -
The term Internet refers to a network of interconnected computers worldwide, all of which share publicly accessible information. This network uses a common language for communication between devices.No hubo un único inventor del Internet; es el resultado de la contribución de muchos pioneros, pero destaca el trabajo de Vinton Cerf y Robert Kahn en la creación del protocolo TCP/IP y el de Tim Berners-Lee en el desarrollo de la World Wide Web. -
A personal computer (PC) is a type of computer designed for use by a single person, capable of performing a variety of tasks such as word processing, Internet browsing, video editing, gaming, and more.John Blankenbaker of Kenbak Corporation in 1970, and was first sold in early 1971. -
A mobile phone, or cell phone, is a portable communications device that uses radio waves to connect to cell towers, enabling calls, text messages, and access to the internet and appsThe first mobile phone in history was the Motorola DynaTAC 8000X.The first mobile phone in history was the Motorola DynaTAC 8000X.