1970s: Computer-Integrated Manufacturing (CIM)

Since the 1970s there had been a growing trend towards the use of computer programs in manufacturing companies. Especially functions related to design and production, but also business functions should be facilitated through the use of computers.

Accordingly the CAD/CAM technology, related to the use of computer systems for design and production, was developed. CAD (computer-aided design) was created to assist in the creation, modification, analysis, and optimization of design. CAM (computer-aided manufacturing) was designed to help with the planning, control, and management of production operations. CAD/CAM technology, since the 1970s, has been applied in many industries, including machined components, electronics products, equipment design and fabrication for chemical processing.

To enable a more comprehensive use of computers in firms the CIM (computer-integrated manufacturing) technology, which also includes applications concerning the business functions of companies, was created. CIM systems can handle order entry, cost accounting, customer billing and employee time records and payroll. The scope of CIM technology includes all activities that are concerned with production. Therefore in many ways CIM represents the highest level of automation in manufacturing.

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ZaMir.net

ZaMir.net started in 1992 trying to enable anti-war and human rights groups of former Yugoslavia to communicate with each other and co-ordinate their activities. Today there are an estimated 1,700 users in 5 different Bulletin Board Systems (Zagreb, Belgrade, Ljubljana, Sarajevo and Pristiana). Za-mir Transnational Network (ZTN) offers e-mail and conferences/newsgroups. The ZTN has its own conferences, which are exchanged between the 5 BBS, and additionally offers more than 150 international conferences. ZTN aim is to help set up systems in other cities in the post-Yugoslav countries that have difficulty connecting to the rest of the world.

History

With the war in Yugoslavia anti-war and human rights groups of former Yugoslavia found it very difficult to organize and met huge problems to co-ordinate their activities due to immense communication difficulties. So in 1992 foreign peace groups together with Institutions in Ljubljana, Zagreb and Belgrade launched the Communications Aid project. Modems were distributed to peace and anti-war groups in Ljubljana, Zagreb, Belgrade and Sarajevo and a BBS (Bulletin Board System) installed.

As after spring 1992 no directs connections could be made they were done indirectly through Austria, Germany or Britain, which also enabled a connection with the worldwide networks of BBS's. Nationalist dictators therefore lost their power to prevent communication of their people. BBS were installed in Zagreb and Belgrade and connected to the APC Network and associated networks. Za-mir Transnational Network (ZTN) was born.

Strategies and Policies

With the help of ZaMir's e-mail network it have been possible to find and coordinate humanitarian aid for some of the many refugees of the war. It has become an important means of communication for humanitarian organizations working in the war region and sister organizations form other countries. It helps co-ordinate work of activists form different countries of former Yugoslavia, and it also helps to coordinate the search for volunteers to aid in war reconstruction. ZTN also helped facilitate exchange of information undistorted by government propaganda between Croatia, Serbia and Bosnia. Independent magazines like Arkzin (Croatia) and Vreme (Serbia) now publish electronic editions on ZTN.

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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:
http://www-db.stanford.edu/pub/gio/CS99I/security.html

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Bandwidth

The bandwidth of a transmitted communications signal is a measure of the range of frequencies the signal occupies. The term is also used in reference to the frequency-response characteristics of a communications receiving system. All transmitted signals, whether analog or digital, have a certain bandwidth. The same is true of receiving systems.

Generally speaking, bandwidth is directly proportional to the amount of data transmitted or received per unit time. In a qualitative sense, bandwidth is proportional to the complexity of the data for a given level of system performance. For example, it takes more bandwidth to download a photograph in one second than it takes to download a page of text in one second. Large sound files, computer programs, and animated videos require still more bandwidth for acceptable system performance. Virtual reality (VR) and full-length three-dimensional audio/visual presentations require the most bandwidth of all.

In digital systems, bandwidth is data speed in bits per second (bps).

Source: Whatis.com

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