The history of propaganda Thinking of propaganda some politicians' names are at once remembered, like The history of propaganda has to tell then merely mentioning those names: |
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Timeline 1600 - 1900 AD 17th century Cardinal Richelieu invents an encryption-tool called grille, a card with holes for writing messages on paper into the holes of those cards. Afterwards he removes the cards and fills in the blanks, so the message looks like an ordinary letter. The recipient needs to own the same card - Bishop John Wilkins invents a cryptologic system looking like music notes. In a book he describes several forms of steganographic systems like secrets inks, but also the string cipher. He mentions the so-called Pig Latin, a spoken way of encryption that was already used by the ancient Indians - the English scientist, magician and astrologer 1605/1623 Sir Francis Bacon (= Francis Tudor = William Shakespeare?) writes several works containing ideas about cryptography. One of his most important advises is to use ciphers in such a way that no-one gets suspicious that the text could be enciphered. For this the steganogram was the best method, very often used in poems. The attempt to decipher Shakespeare's sonnets (in the 20th century) lead to the idea that his works had been written by Francis Bacon originally. 1671 Leibniz invents a calculating machine that uses the binary scale which we still use today, more advanced of course, called the ASCII code 18th century this is the time of the Black Chambers of espionage in Europe, Vienna having one of the most effective ones, called the "Geheime Kabinettskanzlei", headed by Baron Ignaz von Koch. Its task is to read through international diplomatic mail, copy letters and return them to the post-office the same morning. Supposedly about 100 letters are dealt with each day. 1790's Thomas Jefferson and Robert Patterson invent a wheel cipher 1799 the Rosetta Stone is found and makes it possible to decipher the Egyptian Hieroglyphs 1832 or 1838 Sam Morse develops the Morse Code, which actually is no code but an enciphered alphabet of short and long sounds. The first Morse code-message is sent by telegraph in 1844. 1834 the 1844 the invention of the telegraph changes cryptography very much, as codes are absolutely necessary by then 1854 the Playfair cipher is invented by Sir Charles Wheatstone 1859 for the first time a tomographic cipher gets described 1861 Friedrich W. Kasiski does a cryptoanalysis of the Vigenère ciphers, which had been supposed to be uncrackable for ages 1891 Major Etienne Bazeries creates a new version of the wheel cipher, which is rejected by the French Army 1895 the invention of the radio changes cryptography-tasks again and makes them even more important |
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Timeline Cryptography - Introduction Besides oral conversations and written language many other ways of information-transport are known: like the bush telegraph, drums, smoke signals etc. Those methods are not cryptography, still they need en- and decoding, which means that the history of language, the history of communication and the history of cryptography are closely connected to each other The timeline gives an insight into the endless fight between enciphering and deciphering. The reasons for them can be found in public and private issues at the same time, though mostly connected to military maneuvers and/or political tasks. One of the most important researchers on Cryptography through the centuries is |
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Atrocity Stories Atrocity stories are nothing else than lies; the two words "atrocity stories" simply pretend to be more diplomatic. The purpose is to destroy an image of the enemy, to create a new one, mostly a bad one. The story creating the image is not necessarily made up completely. It can also be a changed into a certain variable direction. The most important thing about atrocity stories is to follow the line of possibility. Even if the whole story is made up it must be probable or at least possible, following rumors. Most successful might it be if a rumor is spread on purpose, some time before the atrocity story is launched, because as soon as something seems to be familiar, it is easier to believe it. |
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Challenges for Copyright by ICT: Copyright Owners The main concern of copyright owners as the (in terms of Reproduction and Distribution Unlike copies of works made using analog copiers (photocopy machines, video recorders etc.) digital information can be reproduced extremely fast, at low cost and without any loss in quality. Since each copy is a perfect copy, no quality-related limits inhibit pirates from making as many copies as they please, and recipients of these copies have no incentive to return to authorized sources to get another qualitatively equal product. Additionally the costs of making one extra copy of intellectual property online are insignificant, as are the distribution costs if the copy is moved to the end user over the Internet. Control and Manipulation In cross-border, global data networks it is almost impossible to control the exploitation of protected works. Particularly the use of anonymous remailers and other existing technologies complicates the persecution of pirates. Also digital files are especially vulnerable to manipulation, of the work itself, and of the (in some cases) therein-embedded |
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Late 1950s - Early 1960s: Second Generation Computers An important change in the development of computers occurred in 1948 with the invention of the Stretch by Throughout the early 1960s there were a number of commercially successful computers (for example the IBM 1401) used in business, universities, and government and by 1965 most large firms routinely processed financial information by using computers. Decisive for the success of computers in business was the stored program concept and the development of sophisticated high-level |
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How the Internet works On the Internet, when you want to retrieve a document from another computer, you request a service from this computer. Your computer is the client, the computer on which the information you want to access is stored, is called the A common set of standards allows the exchange of data and commands independent from locations, time, and operating systems through the Internet. These standards are called communication protocols, or the Internet Protocol Suite, and are implemented in Internet software. Sometimes the Internet Protocol Suite is erroneously identified with Any information to be transferred is broken down into pieces, so-called packets, and the Internet Protocol figures out how the data is supposed to get from A to B by passing through routers. Each packet is "pushed" from router to router via The technique of breaking down all messages and requests into packets has the advantage that a large data bundle (e.g. videos) sent by a single user cannot block a whole network, because the One of the Internet's (and of the Matrix's) beginnings was the Routing around depends on the location of the interruption and on the availability of intersecting points between networks. If, for example, an E-mail message is sent from Brussels to Athens and in Germany a channel is down, it will not affect access very much, the message will be routed around this damage, as long as a major Internet exchange is not affected. However, if access depends on a single backbone connection to the Internet and this connection is cut off, there is no way to route around. In most parts of the world the Internet is therefore vulnerable to disruption. "The idea of the Internet as a highly distributed, redundant global communications system is a myth. Virtually all communications between countries take place through a very small number of bottlenecks, and the available bandwidth isn't that great," says Douglas Barnes. These bottlenecks are the network connections to neighboring countries. Many countries rely on a one single connection to the Net, and in some places, such as the Suez Canal, there is a concentration of fiber-optic cables of critical importance. |
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Intellectual Property and the "Information Society" Metaphor Today the talk about the so-called "information society" is ubiquitous. By many it is considered as the successor of the industrial society and said to represent a new form of societal and economical organization. This claim is based on the argument, that the information society uses a new kind of resource, which fundamentally differentiates from that of its industrial counterpart. Whereas industrial societies focus on physical objects, the information society's raw material is said to be knowledge and information. Yet the conception of the capitalist system, which underlies industrial societies, also continues to exist in an information-based environment. Although there have been changes in the forms of manufacture, the relations of production remain organized on the same basis. The principle of property. In the context of a capitalist system based on industrial production the term property predominantly relates to material goods. Still even as in an information society the raw materials, resources and products change, the concept of property persists. It merely is extended and does no longer solely consider physical objects as property, but also attempts to put information into a set of property relations. This new kind of knowledge-based property is widely referred to as " |
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Timeline 1900-1970 AD 1913 the wheel cipher gets re-invented as a strip 1917 - an AT&T-employee, Gilbert S. Vernam, invents a polyalphabetic cipher machine that works with random-keys 1918 the Germans start using the ADFGVX-system, that later gets later by the French Georges Painvin - Arthur Scherbius patents a ciphering machine and tries to sell it to the German Military, but is rejected 1919 Hugo Alexander Koch invents a rotor cipher machine 1921 the Hebern Electric Code, a company producing electro-mechanical cipher machines, is founded 1923 Arthur Scherbius founds an enterprise to construct and finally sell his late 1920's/30's more and more it is criminals who use cryptology for their purposes (e.g. for smuggling). Elizabeth Smith Friedman deciphers the codes of rum-smugglers during prohibition regularly 1929 Lester S. Hill publishes his book Cryptography in an Algebraic Alphabet, which contains enciphered parts 1933-1945 the Germans make the Enigma machine its cryptographic main-tool, which is broken by the Poles Marian Rejewski, Gordon Welchman and Alan Turing's team at Bletchley Park in England in 1939 1937 the Japanese invent their so called Purple machine with the help of Herbert O. Yardley. The machine works with telephone stepping relays. It is broken by a team of 1930's the Sigaba machine is invented in the USA, either by W.F. Friedman or his colleague Frank Rowlett - at the same time the British develop the Typex machine, similar to the German Enigma machine 1943 Colossus, a code breaking computer is put into action at Bletchley Park 1943-1980 the cryptographic Venona Project, done by the NSA, is taking place for a longer period than any other program of that type 1948 Shannon, one of the first modern cryptographers bringing mathematics into cryptography, publishes his book A Communications Theory of Secrecy Systems 1960's the Communications-Electronics Security Group (= CESG) is founded as a section of Government Communications Headquarters (= GCHQ) late 1960's the IBM Watson Research Lab develops the Lucifer cipher 1969 James Ellis develops a system of separate public-keys and private-keys |
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Hill & Knowlton Although it is generally hard to distinguish between public relations and propaganda, It furthermore played a central role in the Gulf War. On behalf of the Kuwaiti government it presented a 15-year-old girl to testify before Congress about human rights violations in a Kuwaiti hospital. The girl, later found out to be the daughter of Kuwait's ambassador to the U.S., and its testimony then became the centerpiece of a finely tuned PR campaign orchestrated by Hill & Knowlton and co-ordinated with the White House on behalf of the government of Kuwait an the Citizens for a Free Kuwait group. Inflaming public opinion against Iraq and bringing the U.S. Congress in favor of war in the Gulf, this probably was one of the largest and most effective public relations campaigns in history. Running campaigns against abortion for the Catholic Church and representing the Accused of pursuing potentially illegal proxy spying operation for intelligence agencies, Richard Cheney, head of Hill & Knowltons New York office, denied this allegations, but said that "... in such a large organization you never know if there's not some sneak operation going on." On the other hand former (Source: Carlisle, Johan: Public Relationships: Hill & Knowlton, Robert Gray, and the CIA. |
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Biometrics applications: physical access This is the largest area of application of biometric technologies, and the most direct lineage to the feudal gate keeping system. Initially mainly used in military and other "high security" territories, physical access control by biometric technology is spreading into a much wider field of application. Biometric access control technologies are already being used in schools, supermarkets, hospitals and commercial centres, where the are used to manage the flow of personnel. Biometric technologies are also used to control access to political territory, as in immigration (airports, Mexico-USA border crossing). In this case, they can be coupled with camera surveillance systems and artificial intelligence in order to identify potential suspects at unmanned border crossings. Examples of such uses in remote video inspection systems can be found at A gate keeping system for airports relying on digital fingerprint and hand geometry is described at An electronic reconstruction of feudal gate keeping capable of singling out high-risk travellers from the rest is already applied at various border crossing points in the USA. "All enrolees are compared against national lookout databases on a daily basis to ensure that individuals remain low risk". As a side benefit, the economy of time generated by the inspection system has meant that "drug seizures ... have increased since Inspectors are able to spend more time evaluating higher risk vehicles". However, biometric access control can not only prevent people from gaining access on to a territory or building, they can also prevent them from getting out of buildings, as in the |
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Basics: Acquisition of Copyright The laws of almost all countries provide that protection is independent of any formalities. Copyright protection then starts as soon as the work is created. |
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Another Question of Security Even with the best techniques it is impossible to invent a cryptographic system that is absolutely safe/unbreakable. To decipher a text means to go through many, sometimes nearly - but never really - endless attempts. For the computers of today it might take hundreds of years or even more to go through all possibilities of codes, but still, finally the code stays breakable. The much faster quantum computers will proof that one day. Therefore the decision to elect a certain method of enciphering finally is a matter of trust. For the average user of computers it is rather difficult to understand or even realize the dangers and/or the technological background of electronic transmission of data. For the majority thinking about one's own necessities for encryption first of all means to trust others, the specialists, to rely on the information they provide. The websites explaining the problems behind (and also the articles and books concerning the topic) are written by experts of course as well, very often in their typical scientific language, merely understandable for laymen. The introductions and other superficial elements of those articles can be understood, whereas the real background appears as untouchable spheres of knowledge. The fact that dangers are hard to see through and the need for security measures appears as something most people know from media reports, leads directly to the problem of an underdeveloped democracy in the field of cryptography. Obviously the connection between cryptography and democracy is rather invisible for many people. Those mentioned media reports often specialize in talking about the work computer hackers do (sometimes being presented as criminals, sometimes as heroes) and the danger to lose control over the money drawn away from one's bank account, if someone steals the credit card number or other important financial data. The term "security", surely connected to those issues, is a completely different one from the one that is connected to privacy. It is especially the latter that touches the main elements of democracy. for the question of security see: |
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Challenges for Copyright by ICT: Digital Content Providers Providers of digital information might be confronted with copyright related problems when using some of the special features of hypertext media like Framing Frames are often used to help define, and navigate within, a content provider's website. Still, when they are used to present (copyrighted) third party material from other sites issues of passing off and misleading or deceptive conduct, as well as copyright infringement, immediately arise. Hyperlinking It is generally held that the mere creation of a hyperlink does not, of itself, infringe copyright as usually the words indicating a link or the displayed URL are unlikely to be considered a "work". Nevertheless if a link is clicked on the users browser will download a full copy of the material at the linked address creating a copy in the RAM of his computer courtesy of the address supplied by the party that published the link. Although it is widely agreed that the permission to download material over the link must be part of an implied license granted by the person who has made the material available on the web in the first place, the scope of this implied license is still the subject of debate. Another option that has been discussed is to consider linking Furthermore hyperlinks, and other "information location tools", like online directories or search engines could cause their operators trouble if they refer or link users to a site that contains infringing material. In this case it is yet unclear whether providers can be held liable for infringement. |
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Individualized Audience Targeting New opportunities for online advertisers arise with the possibility of one-to-one Web applications. Software agents for example promise to "register, recognize and manage end-user profiles; create personalized communities on-line; deliver personalized content to end-users and serve highly targeted advertisements". The probably ultimate tool for advertisers. Although not yet widely used, companies like |
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Enforcement: Copyright Management and Control Technologies With the increased ease of the reproduction and transmission of unauthorized copies of digital works over electronic networks concerns among the copyright holder community have arisen. They fear a further growth of copyright piracy and demand adequate protection of their works. A development, which started in the mid 1990s and considers the copyright owner's apprehensions, is the creation of |
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Feeding the data body |
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Data bunkers Personal data are collected, appropriated, processed and used for commercial purposes on a global scale. In order for such a global system to operate smoothly, there a server nodes at which the data streams converge. Among the foremost of these are the data bases of credit card companies, whose operation has long depended on global networking. On top of credit card companies such as Visa, American Express, Master Card, and others. It would be erroneous to believe that the primary purpose of business of these companies is the provision of credit, and the facilitation of credit information for sale transactions. In fact, Information means much more than just credit information. In an advertisement of 1982, American Express described itself in these terms: ""Our product is information ...Information that charges airline tickets, hotel rooms, dining out, the newest fashions ...information that grows money funds buys and sells equities ...information that pays life insurance annuities ...information that schedules entertainment on cable television and electronically guards houses ...information that changes kroners into guilders and figures tax rates in Bermuda ..." Information has become something like the gospel of the New Economy, a doctrine of salvation - the life blood of society, as Bill Gates expresses it. But behind information there are always data that need to be generated and collected. Because of the critical importance of data to the economy, their possession amounts to power and their loss can cause tremendous damage. The data industry therefore locates its data warehouses behind fortifications that bar physical or electronic access. Such structures are somewhat like a digital reconstruction of the medieval fortress Large amounts of data are concentrated in fortress-like structures, in data bunkers. As the |
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Internet, Intranets, Extranets, and Virtual Private Networks With the rise of networks and the corresponding decline of mainframe services computers have become communication devices instead of being solely computational or typewriter-like devices. Corporate networks become increasingly important and often use the Internet as a public service network to interconnect. Sometimes they are Software companies, consulting agencies, and journalists serving their interests make some further differences by splitting up the easily understandable term Cable TV networks and online services as Especially for financial transactions, secure proprietary networks become increasingly important. When you transfer funds from your banking account to an account in another country, it is done through the SWIFT network, the network of the Electronic Communications Networks as |
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Databody convergence In the phrase "the rise of the citizen as a consumer", to be found on the When the citizen becomes a consumer, the state must become a business. In the data body business, the key word behind this new identity of government is "outsourcing". Functions, that are not considered core functions of government activity are put into the hands of private contractors. There have long been instances where privately owned data companies, e.g. credit card companies, are allowed access to public records, e.g. public registries or electoral rolls. For example, in a normal credit card transaction, credit card companies have had access to public records in order to verify identity of a customer. For example, in the UK citizen's personal data stored on the Electoral Roll have been used for commercial purposes for a long time. The new British Data Protection Act now allows people to "opt out" of this kind of commercialisation - a legislation that has prompted protests on the part of the data industry: While this may serve as an example of an increased public awareness of privacy issues, the trend towards outsourcing seems to lead to a complete breakdown of the barriers between commercial and public use of personal data. This trend can be summarised by the term "outsourcing" of government functions. Governments increasingly outsource work that is not considered core function of government, e.g. cooking meals in hospitals or mowing lawns in public parks. Such peripheral activities marked a first step of outsourcing. In a further step, governmental functions were divided between executive and judgemental functions, and executive functions increasingly entrusted to private agencies. For these agencies to be able to carry out the work assigned to them, the need data. Data that one was stored in public places, and whose handling was therefore subject to democratic accountability. Outsourcing has produced gains in efficiency, and a decrease of accountability. Outsourced data are less secure, what use they are put to is difficult to control. The world's largest data corporation, Technically the linking of different systems is already possible. It would also create more efficiency, which means generate more income. The question, then, whether democracy concerns will prevent it from happening is one that is capable of creating But what the EDS example shows is something that applies everywhere, and that is that the data industry is whether by intention or whether by default, a project with profound political implications. The current that drives the global economy deeper and deeper into becoming a global data body economy may be too strong to be stopped by conventional means. However, the convergence of political and economic data bodies also has technological roots. The problem is that politically motivated surveillance and economically motivated data collection are located in the same area of information and communication technologies. For example, monitoring internet use requires more or less the same technical equipment whether done for political or economic purposes. Data mining and data warehousing techniques are almost the same. Creating transparency of citizens and customers is therefore a common objective of intelligence services and the data body industry. Given that data are exchanged in electronic networks, a compatibility among the various systems is essential. This is another factor that encourages "leaks" between state-run intelligence networks and the private data body business. And finally, given the secretive nature of state intelligence and commercial data capturing , there is little transparency. Both structures occupy an opaque zone. |
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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 For more information on early communication networks see |
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The Flesh Machine This is the tile of a book by the |
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Framing Framing is the practice of creating a frame or window within a web page where the content of a different web page can be display. Usually when a link is clicked on, the new web page is presented with the reminders of the originating page. |
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Electronic Data Interchange (EDI) EDI is an international standard relating to the exchange of trade goods and services. It enables trading partners to conduct routine business transactions, such as purchase orders, invoices and shipping notices independent of the computer platform used by the trading partners. Standardization by EDI translation software assures the correct interpretation of data. EDI might become increasingly important to electronic commerce. |
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Apple Founded by Steve Jobs and Steve Wozniak and headquartered in Cupertino, USA, Apple Computer was the first commercially successful personal computer company. In 1978 Wozniak invented the first personal computer, the Apple II. For more detailed information see the Encyclopaedia Britannica: http://www.britannica.com/bcom/eb/article/6/0,5716,115726+1+108787,00.html |
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William Frederick Friedman Friedman is considered the father of U.S.-American cryptoanalysis - he also was the one to start using this term. |
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water-clocks The water-clocks are an early long-distance-communication-system. Every communicating party had exactly the same jar, with a same-size-hole that was closed and the same amount of water in it. In the jar was a stick with different messages written on. When one party wanted to tell something to the other it made a fire-sign. When the other answered, both of them opened the hole at the same time. And with the help of another fire-sign closed it again at the same time, too. In the end the water covered the stick until the point of the wanted message. |
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Agostino Ramelli's reading wheel, 1588 Agostino Ramelli designed a "reading wheel" which allowed browsing through a large number of documents without moving from one spot. Presenting a large number of books, a small library, laid open on lecterns on a kind of ferry-wheel, allowing us to skip chapters and to browse through pages by turning the wheel to bring lectern after lectern before our eyes, thus linking ideas and texts together, Ramelli's reading wheel reminds of today's browsing software used to navigate the |
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Above.net Headquartered in San Jose, USA, AboveNet Communications is a http://www.above.net |
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Microsoft Network Microsoft Network is the online service from http://www.msn.com |
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Harold. D. Lasswell Harold. D. Lasswell (* 1902) studied at the London School of Economics. He then became a professor of social sciences at different Universities, like the University of Chicago, Columbia University, and Yale University. He also was a consultant for several governments. One of Lasswell's many famous works was Propaganda Technique in World War. In this he defines propaganda. He also discussed major objectives of propaganda, like to mobilize hatred against the enemy, to preserve the friendship of allies, to procure the co-operation of neutrals and to demoralize the enemy. |
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Instinet Instinet, a wholly owned subsidiary of |
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Blue Box The blue box-system works with a special blue colored background. The person in front can act as if he/she was filmed anywhere, also in the middle of a war. |
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Binary number system In mathematics, the term binary number system refers to a positional numeral system employing 2 as the base and requiring only two different symbols, 0 and 1. The importance of the binary system to information theory and computer technology derives mainly from the compact and reliable manner in which data can be represented in electromechanical devices with two states--such as "on-off," "open-closed," or "go-no go." |
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Internet Societal Task Force The Internet Societal Task Force is an organization under the umbrella of the Internet Society dedicated to assure that the Internet is for everyone by identifying and characterizing social and economic issues associated with the growth and use of Internet. It supplements the technical tasks of the Topics under discussion are social, economic, regulatory, physical barriers to the use of the Net, privacy, interdependencies of Internet penetration rates and economic conditions, regulation and taxation. |
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Colouring In November 1997, after the assassination of (above all Swiss) tourists in Egypt, the Swiss newspaper Blick showed a picture of the place where the attack had happened, with a tremendous pool of blood, to emphasize the cruelty of the Muslim terrorists. In other newspapers the same picture could be seen - with a pool of water, like in the original. Of course the manipulated coloured version of the Blick fit better into the mind of the shocked Swiss population. The question about death penalty arose quickly .... |
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Expert system Expert systems are advanced computer programs that mimic the knowledge and reasoning capabilities of an expert in a particular discipline. Their creators strive to clone the expertise of one or several human specialists to develop a tool that can be used by the layman to solve difficult or ambiguous problems. Expert systems differ from conventional computer programs as they combine facts with rules that state relations between the facts to achieve a crude form of reasoning analogous to |
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retouch The retouch is the simplest way to change a picture. Small corrections can be made through this way. A well-known example is the correction of a picture from a Bill Clinton-visit in Germany. In the background of the photograph stood some people, holding a sign with critical comments. In some newspapers the picture was printed like this, in others a retouch had erased the sign. Another example happened in Austria in 1999: The right wing party FPÖ had a poster for the Parliamentarian elections which said: 1999 reasons to vote for Haider. Others answered by producing a retouch saying: 1938 reasons to not vote for Haider (pointing to the year 1939, when the vast majority of the Austrians voted for the "Anschluss" to Germany). |
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Defense Advanced Research Project Agency (DARPA) DARPA (Defense Advanced Research Projects Agency) is the independent research branch of the U.S. Department of Defense that, among its other accomplishments, funded a project that in time was to lead to the creation of the Internet. Originally called ARPA (the "D" was added to its name later), DARPA came into being in 1958 as a reaction to the success of Sputnik, Russia's first manned satellite. DARPA's explicit mission was (and still is) to think independently of the rest of the military and to respond quickly and innovatively to national defense challenges. In the late 1960s, DARPA provided funds and oversight for a project aimed at interconnecting computers at four university research sites. By 1972, this initial network, now called the http://www.darpa.mil |
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The World Wide Web History Project The ongoing World Wide Web History Project was established to record and publish the history of the World Wide Web and its roots in hypermedia and networking. As primary research methods are used archival research and the analysis of interviews and talks with pioneers of the http://www.webhistory.org/home.html |
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Internet Exchanges Internet exchanges are intersecting points between major networks. List of the World's Public Internet exchanges ( |
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Gerard J. Holzmann and Bjoern Pehrson, The Early History of Data Networks This book gives a fascinating glimpse of the many documented attempts throughout history to develop effective means for long distance communications. Large-scale communication networks are not a twentieth-century phenomenon. The oldest attempts date back to millennia before Christ and include ingenious uses of homing pigeons, mirrors, flags, torches, and beacons. The first true nationwide data networks, however, were being built almost two hundred years ago. At the turn of the 18th century, well before the electromagnetic telegraph was invented, many countries in Europe already had fully operational data communications systems with altogether close to one thousand network stations. The book shows how the so-called information revolution started in 1794, with the design and construction of the first true telegraph network in France, Chappe's fixed optical network. http://www.it.kth.se/docs/early_net/ |
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