bn:03720867n
Noun Concept
Categories: History of computing, Archival science, Infographics, Technical drawing, Electronic documents
EN
aperture card
EN
An aperture card is a type of punched card with a cut-out window into which a chip of microfilm is mounted. Wikipedia
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EN
An aperture card is a type of punched card with a cut-out window into which a chip of microfilm is mounted. Wikipedia
punch card in which a piece of microfilm is mounted Wikidata
Wikipedia
Wikidata