Phone Networks in Every Day Life
|2.0.||PHONE NETWORKS IN EVERY DAY LIFE||4|
|2.1.||Transmit of Human Voice via Wires||4|
|2.2.||Transmit of Human Voice Wireless||4|
|3.0.||VARIATION OF PHONE NETWORKS||7|
|3.1.||Analogue Signal in Phone Networks||7|
|3.2.||Digital Signal in Phone Networks||8|
|4.0.||ADVANTAGES AND DISADVANTAGES OF NETWORKS||10|
|4.1.||Quality of Transmitted Signals||10|
|4.2.||Fibre Optic Cable Advantages Over Copper||11|
Progress in digitalization and wireless around the world allowed people from unreachable continents, like Africa, get connected with the rest of the world. Because of the digital progress it’s now possible to send enormous amount of information over the internet just in the seconds. With digital technologies nothing is impossible, humanity is gifted by instant information exchange, communication, interactive TV, live reports, possibility to travel in any place virtually. And it is not yet the end of the digital technologies, with every day they gets more and more advanced, it is difficult to predict what is waiting humanity in future. It could be possible soon for people to be teleported over distance as well, with no need to use buses, train, airplanes and finally went to the furthest stars in galaxy.
But there are not only positive moments in digital era, it is also the weakest place, where the people could be hit. Imagine when ever thing in people life, relays on digital devices in such a deep level. What a catastrophic thing could possibly happened. Of course, there are no perfect computers or devices, which could break down in any moment, but it is always expected and quickly, easily repairable. But if it will happened for example huge electromagnetic storm, electromagnetic bomb, all humanity will be paralysed, the plains fall dawn, traffic lights stops working, tons of important information get lost, atomic reactors will be out of the control, every thing will be out off order. It will be more catastrophic than any earth quakes. Humanity should not only develop digital systems, but in the same time improve them so it can not harm the people and possibly find some alternative way of living or surviving with out them.
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