A lace card is a punched card with all holes punched (also called a whoopee card, ventilator card, flyswatter card, or IBMdoily). 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.[1][2]
lace, card, lace, card, punched, card, with, holes, punched, also, called, whoopee, card, ventilator, card, flyswatter, card, doily, they, were, mainly, used, practical, jokes, cause, disruption, card, readers, card, readers, tended, when, lace, card, inserted. A lace card is a punched card with all holes punched also called a whoopee card ventilator card flyswatter card or IBM doily 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 1 2 A lace card from the early 1970sSee also editBlack fax Christmas tree packet Denial of service List of practical joke topicsNotes editThis article is based in part on the Jargon File version 4 2 1 which is in the public domain References edit Jargon File v4 2 1 5 March 2000 Retrieved 23 June 2015 Raymond Eric S 1996 The New Hacker s Dictionary Cambridge MA MIT Press p 368 ISBN 0 262 18178 9 nbsp This computer storage related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Lace card amp oldid 1208637769, wikipedia, wiki, book, books, library,
