The Net connections can be based on wire-line and wireless access technolgies.
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Usually several kinds of network connections are employed at once. Generally speaking, when an E-mail message is sent it travels from the user's computer via copper wires or coaxial cables
Satellite communication
Although facing competition from fiber-optic cables as cost-effective solutions for broadband data transmission services, the space industry is gaining increasing importance in global communications. As computing, telephony, and audiovisual technologies converge, new wireless technologies are rapidly deployed occupying an increasing market share and accelerating the construction of high-speed networks.
Privatization of satellite communication
Until recently transnational satellite communication was provided exclusively by intergovernmental organizations as
Scheduled privatization of intergovernmental satellite consortia:
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When Intelsat began to accumulate losses because of management failures and the increasing market share of fiber-optic cables, this organizational scheme came under attack. Lead by the USA, the Western industrialized countries successfully pressed for the privatization of all satellite consortia they are members of and for competition by private carriers.
As of February 2000, there are 2680 satellites in service. Within the next four years a few hundred will be added by the new private satellite systems. Most of these systems will be so-called Low Earth Orbit satellite systems, which are capable of providing global mobile data services on a high-speed level at low cost.
Because of such technological improvements and increasing competition, experts expect satellite-based broadband communication to be as common, cheap, and ubiquitous as satellite TV today within the next five or ten years.
Major satellite communication projects
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Source: Analysys Satellite Communications Database
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All biometric technologies capture biometric data from individuals. Once these date have been captured by a system, they can, in principle, be forwarded to other locations and put to many different uses which are capable of compromising on an individuals privacy.
Technically it is easy to match biometric data with other personal data stored in government or corporate files, and to come a step closer to the counter-utopia of the transparent citizen and customer whose data body is under outside control.
While biometric technologies are often portrayed as protectors of personal data and safeguards against identity theft, they can thus contribute to an advance in "Big Brother" technology.
The combination of personalised data files with biometric data would amount to an enormous control potential. While nobody in government and industry would admit to such intentions, leading data systems companies such as EDS (Electronic Data Systems;
Biometric technologies have the function of identification. Historically, identification has been a prerequisite for the exercise of power and serves as a protection only to those who are in no conflict with this power. If the digitalisation of the body by biometric technologies becomes as widespread as its proponents hope, a new electronic feudal system could be emerging, in which people are reduced to subjects dispossessed of their to their bodies, even if these, unlike in the previous one, are data bodies. Unlike the gatekeepers of medieval towns, wear no uniforms by they might be identified; biometric technologies are pure masks.
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DMCA (Digital Millennium Copyright Act)
The debates in the House and Senate preceding the signing into law of the DMCA by U.S. President Clinton in October 1998 indicated that the principal object of the Act is to promote the U.S. economy by establishing an efficient Internet marketplace in copyrighted works. The DMCA implements the two 1996
A full-text version of the DMCA is available from:
The Library of Congress: Thomas (Legislative Information on the Internet):
Moreover the U.S. Copyright Office provides a memorandum, which briefly summarizes each of the five titles of the DMCA (pdf format):
The DMCA has been criticized for not clarifying the range of legal principles on the liability of ISPs and creating exceptions to only some of the provisions; therefore giving copyright owners even more rights.
Among the variety of comments on the DMCA are:
Lutzker, Arnold P.: Primer on the Digital Millennium: What the Digital Millennium Copyright Act and the Copyright Term Extension Act Mean for the Library Community.
Lutzker & Lutzker law firm and the Association of Research Libraries: The Digital Millennium Copyright Act: Highlights of New Copyright Provision Establishing Limitation of Liability for Online Service Providers.
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In the 1920s the Hollow Earth Theory was very popular in Germany. With the acceptance and support of the NAZI regime Karl Neupert wrote the book Geokosmos. With the help of this book the theory became a cult in Germany.
Louis XIV. (1643-1715) became King of France when he was still a young boy. He centralized all the state's power to the crown and created a state of absolutism. In this respect Louis' most famous sentence was: L'état c'est moi. (= The state am I). During his reign the most talented and respectable men in art as well as in philosophy and policy worked for the monarchy. His favor for luxury and the steady wars with other European empires ruined the state morally and financially, but for the history he is still called Roi Soleil (King of the Sun).
b. June 23, 1912, London, England
d. June 7, 1954, Wilmslow, Cheshire
English mathematician and logician who pioneered in the field of computer theory and who contributed important logical analyses of computer processes. Many mathematicians in the first decades of the 20th century had attempted to eliminate all possible error from mathematics by establishing a formal, or purely algorithmic, procedure for establishing truth. The mathematician Kurt Gödel threw up an obstacle to this effort with his incompleteness theorem. Turing was motivated by Gödel's work to seek an algorithmic method of determining whether any given propositions were undecidable, with the ultimate goal of eliminating them from mathematics. Instead, he proved in his seminal paper "On Computable Numbers, with an Application to the Entscheidungsproblem [Decision Problem]" (1936) that there cannot exist any such universal method of determination and, hence, that mathematics will always contain undecidable propositions. During World War II he served with the Government Code and Cypher School, at Bletchley, Buckinghamshire, where he played a significant role in breaking the codes of the German "