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Aperture card

An aperture card is a type of punched card with a cut-out window into which a chip of microfilm is mounted. Such a card is used for archiving or for… 
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Papers overview

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2008
2008
Zusammenfassung Neue Entwicklungen in der Elektronik wie massengedruckte Einfachelektronik ermöglichen den Einsatz von… 
1995
1995
Project Alexandria, one of six National Science Foundation (NSF) digital library initiatives (DLI), has as its objective online… 
1986
1986
In 1985, procurements by the Army and Air Force of automated engineering storage and retrieval systems are underway: DSREDS, the… 
1968
1968
Abstract : The report focuses on the use of the aperture card as an adjunct to a computerized information system. System… 
1959
1959
Abstract : The microfilm aperture card system, which is a new concept in the storage, reproduction, and distribution of…