Lace card: Difference between revisions
Jump to navigation
Jump to search
imported>AnomieBOT m Dating maintenance tags: {{Cn}} |
imported>Falcon Kirtaran cite definition of lace card |
||
| Line 1: | Line 1: | ||
{{Short description|Punch card with all holes punched}} | {{Short description|Punch card with all holes punched}} | ||
[[Image:IBM lace card.jpg|right|thumb|300px|A lace card from the early 1970s]] | [[Image:IBM lace card.jpg|right|thumb|300px|A lace card from the early 1970s]] | ||
A '''lace card''' (also called a '''whoopee card''', '''ventilator card''', '''flyswatter card''', or '''IBM doily'''{{cn|date=December 2024}}) is a [[punched card]] with all holes punched. They were mainly used as practical jokes to cause disruption in [[Punched card reader|card readers]]. Card readers tended to jam when a lace card was inserted, as the resulting card had insufficient structural integrity to avoid buckling inside the mechanism. Card punchers could also jam trying to produce cards with all holes punched, owing to power-supply problems. When a lace card was fed through the reader, a [[card knife]] or [[card saw]] (a flat tool used with punched card readers and card punches) was needed to clear the jam.<ref>{{cite web|title=Jargon File, v4.2.1|url=http://catb.org/jargon/oldversions/jarg421.txt|accessdate=23 June 2015|date=5 March 2000}}</ref><ref>{{cite book|last1=Raymond|first1=Eric S.|title=The New Hacker's Dictionary|date=1996|publisher=MIT Press|location=Cambridge, MA|isbn=0-262-18178-9|page=368}}</ref> | A '''lace card''' (also called a '''whoopee card''', '''ventilator card''', '''flyswatter card''', or '''IBM doily'''{{cn|date=December 2024}}) is a [[punched card]] with all holes punched.<ref>{{Cite book |last=Ferbrache |first=David |url=https://www.google.com/books/edition/A_Pathology_of_Computer_Viruses/_VLmBwAAQBAJ?hl=en&gbpv=1&printsec=frontcover |title=A Pathology of Computer Viruses |date=2012-12-06 |publisher=Springer Science & Business Media |isbn=978-1-4471-1774-2 |pages=7 |language=en}}</ref> They were mainly used as practical jokes to cause disruption in [[Punched card reader|card readers]]. Card readers tended to jam when a lace card was inserted, as the resulting card had insufficient structural integrity to avoid buckling inside the mechanism. Card punchers could also jam trying to produce cards with all holes punched, owing to power-supply problems. When a lace card was fed through the reader, a [[card knife]] or [[card saw]] (a flat tool used with punched card readers and card punches) was needed to clear the jam.<ref>{{cite web|title=Jargon File, v4.2.1|url=http://catb.org/jargon/oldversions/jarg421.txt|accessdate=23 June 2015|date=5 March 2000}}</ref><ref>{{cite book|last1=Raymond|first1=Eric S.|title=The New Hacker's Dictionary|date=1996|publisher=MIT Press|location=Cambridge, MA|isbn=0-262-18178-9|page=368}}</ref> | ||
==See also== | ==See also== | ||
Latest revision as of 03:27, 11 November 2025
A lace card (also called a whoopee card, ventilator card, flyswatter card, or IBM doilyScript error: No such module "Unsubst".) is a punched card with all holes punched.[1] They were mainly used as practical jokes to cause disruption in card readers. Card readers tended to jam when a lace card was inserted, as the resulting card had insufficient structural integrity to avoid buckling inside the mechanism. Card punchers could also jam trying to produce cards with all holes punched, owing to power-supply problems. When a lace card was fed through the reader, a card knife or card saw (a flat tool used with punched card readers and card punches) was needed to clear the jam.[2][3]
See also
Notes
- This article is based in part on the Jargon File, version 4.2.1, which is in the public domain.