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Ancient Images and New Technologies: The Semiotics of the Web

The article develops an analysis of visual knowledge and the use of pictures in electronic communication. The author focuses in particular on indexical images, which we use in navigat-ing multimedia documents and the Web. For this purpose, the author bases his study on the one hand on semiotics, the core concepts of which were intro-duced by C.S. Peirce at the beginning of the last century; and on the other hand on a more classical historical analy-sis, in order to point out the deep roots of the concepts used in contemporary computer-based communication.