The Net connections can be based on wire-line and wireless access technolgies.
|
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:
|
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
|
Source: Analysys Satellite Communications Database
TEXTBLOCK 1/7 // URL: http://world-information.org/wio/infostructure/100437611791/100438659839
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.
TEXTBLOCK 2/7 // URL: http://world-information.org/wio/infostructure/100437611791/100438659870
Only in Roman times the first rights referring to artistic works appeared. Regulations resembling a lasting exclusive right to copy did not occur until the 17th century. Before copyright was a private arrangement between guilds able to reproduce copies in commercial quantities.
In France and Western European countries "droits d'auteur" or author's rights is the core of what in the Anglo-American tradition is called copyright. Such rights are rooted in the republican revolution of the late 18th century, and the Rights of Man movement. Today in the European system the creator is front and center; later exploiters are only secondary players.
France
During the 18th century France gradually lost the ability to restrict
In 1777 the King threatened the monopoly by reducing the duration of publisher's privileges to the lifetime of the authors. Accordingly a writer's work would go into the public domain after his death and could be printed by anyone. The booksellers fought back by argumenting that, no authority could take their property from them and give it to someone else. Seven months later, in August 1789, the revolutionary government ended the privilege system and from that time on anyone could print anything. Early in 1790 Marie-Jean-Antoine-Nicolas de Caritat, Marquis de Condorcet proposed giving authors power over their own work lasting until ten years after their deaths. The proposal - the basis for France's first modern copyright law - passed in 1793.
TEXTBLOCK 3/7 // URL: http://world-information.org/wio/infostructure/100437611725/100438659414
Mormon Church v. Sandra and Jerald Tanner
In a ruling of December 1999, a federal judge in Utah temporarily barred two critics of the Mormon Church from posting on their website the Internet addresses of other sites featuring pirated copies of a Mormon text. The Judge said that it was likely that Sandra and Jerald Tanner had engaged in contributory copyright infringement when they posted the addresses of three Web sites that they knew, or should have known, contained the copies.
Kaplan, Carl S.:
Universal Studios v. Movie-List
The website Movie-List, which features links to online, externally hosted movie trailers has been asked to completely refrain from linking to any of Universal Studio's servers containing the trailers as this would infringe copyright.
Cisneros, Oscar S.: Universal: Don't Link to Us. In:
More cases concerned with the issue of linking,
Ross, Alexandra: Copyright Law and the Internet:
TEXTBLOCK 4/7 // URL: http://world-information.org/wio/infostructure/100437611725/100438659639
Industrial
TEXTBLOCK 5/7 // URL: http://world-information.org/wio/infostructure/100437611663/100438659325
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 "
TEXTBLOCK 6/7 // URL: http://world-information.org/wio/infostructure/100437611725/100438659429
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.
TEXTBLOCK 7/7 // URL: http://world-information.org/wio/infostructure/100437611725/100438659576
1896
The Daily Mail was published in Great Britain. It was the first newspaper for the masses. With the emerging of newspapers the manner how politics was perceived by the public changed completely. It became more difficult to keep secrets, while at the same time there was suddenly a new and nearly perfect tool for manipulation.
b. December 3, 1903, Budapest, Hungary
d. February 8, 1957, Washington, D.C., U.S.
Mathematician who made important contributions in quantum physics, logic, meteorology, and computer science. His theory of games had a significant influence upon economics. In computer theory, von Neumann did much of the pioneering work in logical design, in the problem of obtaining reliable answers from a machine with unreliable components, the function of "memory," machine imitation of "randomness," and the problem of constructing automata that can reproduce their own kind.
Blowfish is a symmetric key block cipher that can vary its length.
The idea behind is a simple design to make the system faster than others.
Although referred to as a single body of rules, there is not just one Netiquette, but there are several, though overlapping largely. Proposing general guidelines for posting messages to newsgroups and mailing lists and using the
Well-known Netiquettes are the
With the assassination of President McKinley, Theodore Roosevelt (1858-1919), not quite 43, became the youngest President in the Nation's history. Roosevelt's youth differed sharply from that of the log cabin Presidents. He was born in New York City in 1858 into a wealthy family. Roosevelt steered the United States more actively into world politics. He liked to quote a favorite proverb, "Speak softly and carry a big stick. . . . "
He won the Nobel Peace Prize for mediating the Russo-Japanese War.
for more information see the official website: