Microcards and Punched Card Filing

Punched-Card to Magnetic-Tape Converter

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...

A punched-card system for the laboratory.

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...

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...

Tax Laws and Filing Requirements

Filing and Finding Computer Files

This paper describes an interview that investigated how people organize and find electronic documents on their computers. Fifteen Macintosh users were interviewed regarding their problems and approaches to filing and finding information. We found no evidence that users are having serious trouble finding files on their personal computers. We uncovered patterns of behavior that seem best describe...