Lace card
id:
lace-card-324-11913078
title:
Lace card
text:
A lace card is a punched card with all holes punched. 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 was needed to clear the jam.
brand slug:
wiki
category slug:
encyclopedia
description:
Punch card with all holes punched
original url:
https://en.wikipedia.org/wiki/Lace_card
date created:
date modified:
2024-02-18T09:14:55Z
main entity:
{"identifier":"Q6468188","url":"https://www.wikidata.org/entity/Q6468188"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/7/7d/IBM_lace_card.jpg","width":863,"height":400}
fields total:
13
integrity:
15