miércoles, septiembre 04, 2013

The historie of communication

The historie of communication



It dates back to prehistory, with significant changes in communication technologies


Symbols were marks, sings or pictures that had a special meaning. The Egyptians used symbols.


Writing


The oldest-known forms of writing were primarily logographic in nature, based on pictographic and ideographic elements. Most writing systems can be broadly divided into three categories: logographic, syllabic and alphabetic