Punched Card Information Retrieval Systemfor Air PollutionControl Data
نویسندگان
چکیده
منابع مشابه
Punched-Card Systems and the Early Information Explosion, 1880-1945
Montréal. Il a pour mission la promotion et la valorisation de la recherche. Érudit offre des services d'édition numérique de documents scientifiques depuis 1998. Note : les règles d'écriture des références bibliographiques peuvent varier selon les différents domaines du savoir. Ce document est protégé par la loi sur le droit d'auteur. L'utilisation des services d'Érudit (y compris la reproduct...
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THE principal devices for converting source data to magnetic tape recording for Univac* are the card-to-tape converter and the Unityper. * Unityper is the, logical conversation medium for input of 'otherwise untreated data. Files of punched cards, however, represent to the owner an investment of time and expense in preparing material for other treatment. The card-to-tape converter provides a me...
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A punched-card system was developed to simplify the administrative aspects of the clinical chemistry laboratory. In it a three-part requisition and samples are matched and given a laboratory number. The third copy of the original laboratory requsition is a charge card also used as a name file for the day. Prepunched cards, coded for laboratory tests, are used for each test requested. The labora...
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ژورنال
عنوان ژورنال: Journal of the Air Pollution Control Association
سال: 1964
ISSN: 0002-2470
DOI: 10.1080/00022470.1964.10468259