An Economic and therefore Governmental Issue

While the digital divide might bring up the idea that enterprises will be able to sell more and more computers during the next years another truth looks as if there was no hope for a certain percentage of the population to get out of their marginalization, their position of being "have nots".

Studies show that the issue of different colors of skin play a role in this, but more than "racial" issues it is income, age and education that decides about the have and have nots.

There exist ~ 103 million households in the USA.
~6 million do not even have telephone access. Why should they care about computers?

The digital divide cuts the world into centers and peripheries, not into nations, as it runs through the boarder between the North and the South as well as through nations.

http://www.digitaldivide.gov/
http://www.digitaldividenetwork.org/
http://www.pbs.org/digitaldivide/
http://news.cnet.com/news/0-1005-200-344552.html
http://racerelations.about.com/newsissues/racerelations/msubdigdivide.htm
http://www.techweek.com/articles/11-1-99/divide.htm
http://www.ntia.doc.gov/ntiahome/net2/falling.html

The most different institutions with various interests in their background work in that field; not rarely paid by governments, which are interested in inhabitants, connected to the net and economy.
see also: http://www.washington.edu/wto/digital/

Searching information about the digital divide one will find informations saying that it is growing all the time whereas other studies suggest the contrary, like this one
http://news.cnet.com/news/0-1005-200-341054.html

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Chappe's fixed optical network

Claude Chappe built a fixed optical network between Paris and Lille. Covering a distance of about 240kms, it consisted of fifteen towers with semaphores.

Because this communication system was destined to practical military use, the transmitted messages were encoded. The messages were kept such secretly, even those who transmit them from tower to tower did not capture their meaning, they just transmitted codes they did not understand. Depending on weather conditions, messages could be sent at a speed of 2880 kms/hr at best.

Forerunners of Chappe's optical network are the Roman smoke signals network and Aeneas Tacitus' optical communication system.

For more information on early communication networks see Gerard J. Holzmann and Bjoern Pehrson, The Early History of Data Networks.

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Optical communication system by Aeneas Tacitus, 4th century B.C.

Aeneas Tacitus, a Greek military scientist and cryptographer, invented an optical communication system that combines water and beacon telegraphy. Torches indicated the beginnings and the ends of message transmissions while water jars were used to transmit the messages. These jars had a plugged standard-size hole drilled on the bottom side and were filled with water. As those who sent and those who received the message unplugged the jars simultaneously, the water drained out. Because the transmitted messages corresponded to water levels, the sender indicated by torch signal that the appropriate water level has been reached. It is a disadvantage that the possible messages are restricted to a given code, but as this system was mainly used for military purposes, this was offset by the advantage that it was almost impossible for outsiders to understand these messages unless they possessed the codebook.

With communication separated from transportation, the distant became near.

Tacitus' telegraph system was very fast and not excelled until the end of the 18th century.

For further information see Joanne Chang & Anna Soellner, Decoding Device, http://www.smith.edu/hsc/museum/ancient_inventions/decoder2.html

http://www.smith.edu/hsc/museum/ancient_inven...
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