Evolution of Communication Technology

In this video, i revealed a brief history of communication technology. Evolution of communication :

The history of communication technologies (media and appropriate inscription tools) have evolved in tandem with shifts in political and economic systems, and by extension, systems of power. Communication can range from very subtle processes of exchange, to full conversations and mass communication. The history of communication itself can be traced back since the origin of speech circa 500,000 BCE. The use of technology in communication may be considered since the first use of symbols about 30,000 years BCE. Among the symbols used, there are cave paintings, petroglyphs, pictograms and ideograms. Writing was a major innovation, as well as printing technology and, more recently, telecommunications and the Internet.

Our early ancestors have used different variations of signs and symbols to communicate. Around 10,000 B.C., petroglyphs were created. They were carvings in the rock surface, usually referred to as a rock art. In 9,000 B.C., pictograms were developed in which ancient people logographic images to tell a story. Later on, ancient cultures developed ideograms. Egyptians had their hieroglyphs. Chinse created characters. Lastly, the alphabet, which redefined language and communication was developed around 2,000 B.C.

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This video informative video but the volume is not loud