1800 - 1900 A.D.

1801
Invention of the punch card

Invented by Joseph Marie Jacquard, an engineer and architect in Lyon, France, punch cards laid the ground for automatic information processing. For the first time information was stored in binary format on perforated cardboard cards. In 1890 Hermann Hollerith used Joseph-Marie Jacquard's punch card technology to process statistical data collected during the US census in 1890, thus speeding up US census data analysis from eight to three years. Hollerith's application of Jacquard's invention was used for programming computers and data processing until electronic data processing was introduced in the 1960's. - As with writing and calculating, administrative applications account for the beginning of modern automatic data processing.

Paper tapes are a medium similar to Jacquard's punch cards. In 1857 Sir Charles Wheatstone used them for the preparation, storage, and transmission of data for the first time. Through paper tapes telegraph messages could be stored, prepared off-line and sent ten times quicker (up to 400 words per minute). Later similar paper tapes were used for programming computers.

1809
Invention of the electrical telegraph

With Samuel Thomas Soemmering's invention of the electrical telegraph the telegraphic transmission of messages was no longer tied to visibility, as it was the case with smoke and light signals networks. Economical and reliable, the electric telegraph became the state-of-the-art communication system for fast data transmissions, even over long distances.

Click here for an image of Soemmering's electric telegraph.

1861
Invention of the telephone

The telephone was not invented by Alexander Graham Bell, as is widely held, but by Philipp Reiss, a German teacher. When he demonstrated his invention to important German professors in 1861, it was not enthusiastically greeted. Because of this dismissal, he was not given any financial support for further development.

And here Bell comes in: In 1876 he successfully filed a patent for the telephone. Soon afterwards he established the first telephone company.

1866
First functional underwater telegraph cable is laid across the Atlantic

1895
Invention of the wireless telegraph

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Economic structure; introduction



"Globalization is to no small extent based upon the rise of rapid global communication networks. Some even go so far as to argue that "information has replaced manufacturing as the foundation of the economy". Indeed, global media and communication are in some respects the advancing armies of global capitalism."

(Robert McChesney, author of "Rich Media, Poor Democracy")

"Information flow is your lifeblood."

(Bill Gates, founder of Microsoft)

The usefulness of information and communication technologies increases with the number of people who use them. The more people form part of communication networks, the greater the amount of information that is produced. Microsoft founder Bill Gates dreams of "friction free capitalism", a new stage of capitalism in which perfect information becomes the basis for the perfection of the markets.

But exploitative practices have not disappeared. Instead, they have colonised the digital arena where effective protective regulation is still largely absent.

Following the dynamics of informatised economies, the consumption habits and lifestyles if customers are of great interest. New technologies make it possible to store and combine collected data of an enormous amount of people.

User profiling helps companies understand what potential customers might want. Often enough, such data collecting takes place without the customer's knowledge and amounts to spying.

"Much of the information collection that occurs on the Internet is invisible to the consumer, which raises serious questions of fairness and informed consent."

(David Sobel, Electronic Privacy Information Center)

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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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The Concept of the Public Sphere

According to social critic and philosopher Jürgen Habermas "public sphere" first of all means "... a domain of our social life in which such a thing as public opinion can be formed. Access to the public sphere is open in principle to all citizens. A portion of the public sphere is constituted in every conversation in which private persons come together to form a public. They are then acting neither as business or professional people conducting their private affairs, nor as legal consociates subject to the legal regulations of a state bureaucracy and obligated to obedience. Citizens act as a public when they deal with matters of general interest without being subject to coercion; thus with the guarantee that they may assemble and unite freely, and express and publicize their opinions freely."

The system of the public sphere is extremely complex, consisting of spatial and communicational publics of different sizes, which can overlap, exclude and cover, but also mutually influence each other. Public sphere is not something that just happens, but also produced through social norms and rules, and channeled via the construction of spaces and the media. In the ideal situation the public sphere is transparent and accessible for all citizens, issues and opinions. For democratic societies the public sphere constitutes an extremely important element within the process of public opinion formation.

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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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Roman smoke telegraph network, 150 A.D.

The Roman smoke signals network consisted of towers within visible range of each other and had a total length of about 4500 kilometers. It was used for military signaling.

For a similar telegraph network in ancient Greece see Aeneas Tacitus' optical communication system.

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ciphers

the word "cipher" comes from the Hebrew word "saphar", meaning "to number". Ciphers are mere substitutions. Each letter of the alphabet gets substituted; maybe by one letter or two or more.

an example:
PLAINTEXT a b c d e f g h i j k l m n o p q r s t u v w x y z
CIPHERTEXT D E F G H I J K L M N O P Q R S T U V W X Y Z A B C

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