Before this ‘technological age’, the invention of the camera and even before the invention of the printing press by Johann Gutenberg, images adorned the walls and stained glass windows of churches, their meaning singular. This was as Berger suggests the age of pilgrimage: we went to the images; they did not yet travel to us. Information came from one source and it resided in one place at one time, the camera, digital technologies and television changed all of that.
Berger, John Ways of Seeing London: British Broadcasting Corporation Harmondsworth: Penguin, 1972
Texts of interest and linked to Berger and his book:
Clark, Kenneth Civilisation: a personal view London: British Broadcasting Corporation, 1969
John Berger Homepage: http://www.johnberger.org/
Daniel Chandler Semiotics for Beginners, Denotation, Connotation and Myth
The Marxist Internet Archive: Benjamin, Walter The Work of Art in the Age of Mechanical Reproduction, 1936 www.marxists.org/reference/subject/philosophy/works/ge/benjamin.htm