perf

2 definitions found

perf - Free On-line Dictionary of Computing (26 May 2007) :

  chad
  perf
  selvage
  snaf
  
     <jargon, printer> /chad/ (Or "selvage" /sel'v*j/ (sewing and
     weaving), "perf", "perfory", "snaf").  1. The perforated
     edge strips on paper for sprocket feed printers, after they
     have been separated from the printed portion.
  
     The term perf may also refer to the perforations themselves,
     rather than the chad they produce when torn.
  
     [Why "snaf"?]
  
     2. (Or "chaff", "computer confetti", "keypunch droppings") The
     confetti-like bits punched out of punched cards or paper tape
      which collected in the chad box.
  
     One of the Jargon File's correspondents believed that "chad"
     derived from the chadless keypunch.
  
     [Jargon File]
  
     (1997-07-18)
  

perf - Jargon File (4.4.4, 14 Aug 2003) :

  perf
   /perf/, n.
  
     Syn. chad (sense 1). The term perfory /per'f@-ree/ is also heard.
     The term perf may also refer to the perforations themselves, rather
     than the chad they produce when torn (philatelists use it this way).