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copybook

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copybook

 

  2  definitions  found 
 
  From  WordNet  r  1.6  [wn]: 
 
  copybook 
  n  :  a  book  containing  models  of  good  penmanship;  used  in 
  teaching  penmanship 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  copybook 
 
    (Or  "copy  member",  "copy  module")  A 
  common  piece  of  {source  code}  designed  to  be  copied  into  many 
  source  programs,  used  mainly  in  {IBM}  {DOS}  {mainframe} 
  programming. 
 
  In  {mainframe}  {DOS}  (DOS/VS,  DOS/{VSE},  etc.),  the  copybook 
  was  stored  as  a  book"  in  a  {source}  library.  A  library  was 
  comprised  of  "books",  prefixed  with  a  letter  designating  the 
  language,  e.g.,  A.name  for  Assembler,  C.name  for  Cobol,  etc., 
  because  {DOS}  didn't  support  multiple  libraries,  private 
  libraries,  or  anything  This  term  is  commonly  used  by  {COBOL} 
  programmers  but  is  supported  by  most  {mainframe}  languages. 
  The  {IBM}  {OS}  series  did  not  use  the  term  "copybook",  instead 
  it  referred  to  such  files  as  libraries"  implemented  as 
  "partitioned  data  sets"  or  {PDS}. 
 
  Copybooks  are  functionally  equivalent  to  {C}  and  {C++} 
  {include}  files. 
 
  (1997-07-31)




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