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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Among the foremost of the data bunkers government bureaucracies. Bureaucracies are the oldest forms of bunkers and are today deeply engrained in modern societies. Bureaucracies have always had the function of collecting and administering the data of subjects. What make this process more problematic in the age of ICT is that a lot more data can be collected, they can be collected in clandestine ways (e.g. in surveillance situations), and the can be combined and merged using advanced data mining technologies. In addition, there is a greater rationale for official data collecting, as a lot more data is required for the functioning of public administration as in previous periods, as societies rush to adopt increasingly complex technologies, above all ICTs. The increasing complexity of modern societies means that an increasing number of bureaucratic decision is taken, all of which require a calculation process. Complexity, viewed through government spectacles, generates insecurity - a great deal of the bureaucratic activity therefore revolves around the topic of security.
In spite of the anti-bureaucratic rhetoric of most governments, these factors provides the bureaucracies with an increased hold on society. Foremost bureaucratic data bunkers include the following:
- Law enforcement agencies
Fiscal agencies
Intelligence agencies
Social welfare agencies
Social insurance institutions
Public health agencies
Educational institutions
These are agencies that enjoy the privileged protection of the state. Those among them that operate in the field of security are further protected against public scrutiny, as they operate in an area to which democratic reason has no access.
What makes the data repositories of these institutions different from private data bunkers is their "official", i.e. their politically binding and definitive character.
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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.
David Kahn can be considered one of the most important historians on cryptography. His book The Codebreakers. The comprehensive history of secret Communication from Ancient Times to the Internet, written in 1996 is supposed to be the most important work on the history of cryptography.