Often public relations are described as the effort to influence the public or relevant parts of it by representing self-interests to reach certain goals. This view of PR is most commonly found, when acting within the economic sphere. On the other hand organizations like the
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According to social critic and philosopher
The system of the public sphere is extremely complex, consisting of spatial and communicational publics of different sizes, which can overlap, exclude and cover, but also mutually influence each other. Public sphere is not something that just happens, but also produced through social norms and rules, and channeled via the construction of spaces and the media. In the ideal situation the public sphere is transparent and accessible for all citizens, issues and opinions. For democratic societies the public sphere constitutes an extremely important element within the process of public opinion formation.
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The Public Relations Society of America (PRSA), headquartered in New York City, is one of the world's largest professional organizations for public relations practitioners. The Society's almost 20,000 members represent business and industry, counselling firms, government, associations, hospitals, schools, professional services firms and non-profit organizations. Since it was chartered in 1948, PRSA has continued to provide a forum for addressing issues affecting the profession, and tried to promote professional standards. It offers opportunities for improvement of skills and advancement of knowledge, as well as for exchange of information and experiences with other public relations professionals.
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
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.