Changes Still, disinformation and propaganda are nothing magic. They can change things, but supposedly only if those things/meanings/opinions are not fixed completely. Galileo Galilee was not capable of changing people's opinion about the world being flat until some persons got suspicious that this long-believed-in truth was a mistake. The propaganda of his experiments which made him famous was not enough. On the other hand later all the propaganda of his enemies could not turn back the wheel of enlightenment, as people thought it was more logic to believe in a round world than in a flat one. It is never just a single idea that changes. Society is following the changes. Thinking about disinformation brings us to the word truth, of course, and to the doubt that there is no definite truth. And truth can easily be manipulated to another truth. Just present some facts that seem to be logic and there you've got a new truth. And if the facts can supposedly be proved by empirical studies then the quality of the truth definitely rises. That's what ideologies do all the time. And the media like to do the same thing - as a game with power or mere presentation of power? But of course there also exist bits of disinformation which are more amusing than evil or dangerous: - the theory of the celestro-centric world/"Hohlwelttheorie" - the story of the German philosopher who invented an Italian philosopher, wrote books about him, even reprinted "his" texts, which had gone lost pretendedly 100 years ago - and finally lost his job and all his career when other scientists found out that everything had been made up.

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1980s: Artificial Intelligence (AI) - From Lab to Life Following the commercial success of expert systems, which started in the 1970s, also other AI technologies began to make their way into the marketplace. In 1986, U.S. sales of AI-related hardware and software rose to U.S.$ 425 million. Especially expert systems, because of their efficiency, were still in demand. Yet also other fields of AI turned out to be successful in the corporate world. Machine vision systems for example were used for the cameras and computers on assembly lines to perform quality control. By 1985 over a hundred companies offered machine vision systems in the U.S., and sales totaled U.S.$ 80 million. Although there was a breakdown in the market for AI-systems in 1986 - 1987, which led to a cut back in funding, the industry slowly recovered. New technologies were being invented in Japan. Fuzzy logic pioneered in the U.S. and also neural networks were being reconsidered for achieving artificial intelligence. The probably most important development of the 1980s was, that it showed that AI technology had real life uses. AI applications like voice and character recognition systems or steadying camcorders using fuzzy logic were not only made available to business and industry, but also to the average customer.

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Sputnik At the beginning of the story of today's global data networks is the story of the development of satellite communication. In 1955 President Eisenhower announced the USA's intention to launch a satellite. But it was the Soviet Union, which launched the first satellite in 1957: Sputnik I. After Sputnik's launch it became evident that the Cold War was also a race for leadership in the application of state-of-the-art technology to defence. As the US Department of Defence encouraged the formation of high-tech companies, it laid the ground to Silicon Valley, the hot spot of the world's computer industry. In the same year the USA launched their first satellite - Explorer I - data were transmitted over regular phone circuits for the first time, thus laying the ground for today's global data networks. Today's satellites may record weather data, scan the planet with powerful cameras, offer global positioning and monitoring services, and relay high-speed data transmissions. But up to now, most satellites are designed for military purposes such as reconnaissance.

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Integrated circuit Also called microcircuit, the integrated circuit is an assembly of electronic components, fabricated as a single unit, in which active semiconductor devices (transistors and diodes) and passive devices (capacitors and resistors) and their interconnections are built up on a chip of material called a substrate (most commonly made of silicon). The circuit thus consists of a unitary structure with no connecting wires. The individual circuit elements are microscopic in size.

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Punch card, 1801 Invented by Joseph Marie Jacquard, an engineer and architect in Lyon, France, the punch cards laid the ground for automatic information processing. For the first time information was stored in binary format on perforated cardboard cards. In 1890 Hermann Hollerith used Joseph-Marie Jacquard's punch card technology for processing statistical data retrieved from the US census in 1890, thus speeding up data analysis from eight to three years. His application of Jacquard's invention was also used for programming computers and data processing until electronic data processing was introduced in the 1960's. - As with writing and calculating, administrative purposes account for the beginning of modern automatic data processing. Paper tapes are a medium similar to Jacquard's punch cards. In 1857 Sir Charles Wheatstone applied them as a medium for the preparation, storage, and transmission of data for the first time. By their means, telegraph messages could be prepared off-line, sent ten times quicker (up to 400 words per minute), and stored. Later similar paper tapes were used for programming computers.

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