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checkpoint

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checkpoint


  2  definitions  found 
 
  From  WordNet  r  1.6  [wn]: 
 
  checkpoint 
  n  :  a  place  (as  at  a  frontier)  where  travellers  are  stopped  for 
  inspection  and  clearance 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  checkpoint 
 
  Saving  the  current  state  of  a  program  and  its  data,  including 
  intermediate  results  to  disk  or  other  {non-volatile  storage}, 
  so  that  if  interrupted  the  program  could  be  restarted  at  the 
  point  at  which  the  last  checkpoint  occurred.  This  facility 
  came  into  popular  use  in  {mainframe}  {operating  systems}s  such 
  as  {OS/360}  in  which  programs  frequently  ran  for  longer  than 
  the  mean  time  between  system  failures.  If  a  program  run  fails 
  because  of  some  event  beyond  the  program's  control 
  (e.g.  hardware  or  {operating  system}  failure)  then  the 
  processor  time  invested  before  the  checkpoint  will  not  have 
  been  wasted. 
 
  (1995-02-07) 
 
 




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