Microfiche is one of the most compact analog storage media in common use. It is normally used to provide a comprehensive research library in institutions (such as small college libraries) that could not otherwise afford the floor space. It was invented in 1961 by Carl O. Carlson, an employee of the National Cash Register Co. The patent was issued in 1965.
Each microfiche card holds about 100¬タモ130 pages depending on the size of the original. A ...
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Microfiche is one of the most compact analog storage media in common use. It is normally used to provide a comprehensive research library in institutions (such as small college libraries) that could not otherwise afford the floor space. It was invented in 1961 by Carl O. Carlson, an employee of the National Cash Register Co. The patent was issued in 1965.
Each microfiche card holds about 100¬タモ130 pages depending on the size of the original. A library of 20,000 microfiche, 10,000¬タモ20,000 books, fits in a cabinet about 1.5x0.5x2 meters. Some companies specialize in providing such libraries to institutions.
Microfiche is normally used to keep copies of book, and sometimes for periodical and newspapers. Its most standard form is a clear plastic card, about 10cm (4in) by 15cm (6in). Usually the title of the work is in visible lettering along one edge. The most common reduction ratio is 24x, with 7 rows of 14 page images each fitting on a single microfiche. Some microfiche have a...
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