Other biometric technologies not specified here include ear recognition, signature dynamics, key stroke dynamics, vein pattern recognition, retinal scan, body odour recognition, and DNA recognition. These are technologies which are either in early stages of development or used in highly specialised and limited contexts.
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This process works even better on the Internet because of the latter's interactive nature. "The Internet is a dream to direct marketers", said Wil Lansing, CEO of the American retailer
Many web sites also are equipped with
One frequent way of obtaining such personal information of a user is by offering free web mail accounts offered by a great many companies, internet providers and web portals (e.g.
However, the intention of collecting users personal data and create consumer profiles based on online behaviour can also take on more creative and playful forms. One such example is
The particular way in which sites such as sixdegrees.com and others are structured mean that not only to users provide initial information about them, but also that this information is constantly updated and therefore becomes even more valuable. Consequently, many free online services or web mail providers cancel a user's account if it has not been uses for some time.
There are also other online services which offer free services in return for personal information which is then used for marketing purposes, e.g. Yahoo's
A further way of collecting consumer data that has recently become popular is by offering free PCs. Users are provided with a PC for free or for very little money, and in return commit themselves to using certain services rather than others (e.g. a particular internet provider), providing information about themselves, and agree to have their online behaviour monitored by the company providing the PC, so that accurate user profiles can be compiled. For example, the
A good inside view of the world of direct marketing can be gained at the website of the
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Generally copyright vests in the author of the work. Certain national laws provide for exceptions and, for example, regard the employer as the original owner of a copyright if the author was, when the work was created, an employee and employed for the purpose of creating that work. In the case of some types of creations, particularly audiovisual works, several national laws provide for different solutions to the question that should be the first holder of copyright in such works.
Many countries allow copyright to be assigned, which means that the owner of the copyright transfers it to another person or entity, which then becomes its holder. When the national law does not permit assignment it usually provides the possibility to license the work to someone else. Then the owner of the copyright remains the holder, but authorizes another person or entity to exercise all or some of his rights subject to possible limitations. Yet in any case the "
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Another important multilateral treaty concerned with
The complete TRIPS agreement can be found on:
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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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Headquartered in San Jose, USA, AboveNet Communications is a
http://www.above.net
Established in 1998 and privately held, Europe Online created and operates the world's largest broadband "Internet via the Sky" network. The Europe Online "Internet via the Sky" service is available to subscribers in English, French, German, Dutch and Danish with more languages to come.
http://www.europeonline.com
Communications satellites are relay stations for radio signals and provide reliable and distance-independent high-speed connections even at remote locations without high-bandwidth infrastructure.
On point-to-point transmission, the transmission method originally employed on, satellites face increasing competition from
In the future, satellites will become stronger, cheaper and their orbits will be lower; their services might become as common as satellite TV is today.
For more information about satellites, see How Satellites Work (
Founded by Bill Gates and Paul Allen and headquartered in Redmond, USA, Microsoft Corporation is today's world-leading developer of personal-computer software systems and applications. As MS-DOS, the first operating system released by Microsoft, before, Windows, its successor, has become the de-facto standard operating system for personal computer. According to critics and following a recent court ruling this is due to unfair competition.
For more detailed information see the Encyclopaedia Britannica: