5  definitions  found 
 
  From  WordNet  r  1.6  [wn]: 
 
  CD-R 
  n  :  a  compact  disc  on  which  you  can  write  only  once  and 
  thereafter  is  read-only  [syn:  {CD-R},  {compact  disc 
  recordable},  {CD-WO},  {compact  disc  write-once}] 
 
  From  Jargon  File  (4.2.3,  23  NOV  2000)  [jargon]: 
 
  cdr  /ku'dr/  or  /kuh'dr/  vt  [from  LISP]  To  skip  past  the  first 
  item  from  a  list  of  things  (generalized  from  the  LISP  operation  on 
  binary  tree  structures,  which  returns  a  list  consisting  of  all  but  the 
  first  element  of  its  argument).  In  the  form  `cdr  down',  to  trace  down 
  a  list  of  elements:  "Shall  we  cdr  down  the  agenda?"  Usage:  silly. 
  See  also  {loop  through}. 
 
  Historical  note:  The  instruction  format  of  the  IBM  704  that  hosted 
  the  original  LISP  implementation  featured  two  15-bit  fields  called 
  the  `address'  and  `decrement'  parts  The  term  `cdr'  was  originally 
  `Contents  of  Decrement  part  of  Register'.  Similarly,  `car'  stood  for 
  `Contents  of  Address  part  of  Register'. 
 
  The  cdr  and  car  operations  have  since  become  bases  for  formation 
  of  compound  metaphors  in  non-LISP  contexts.  GLS  recalls,  for  example, 
  a  programming  project  in  which  strings  were  represented  as  linked  lists; 
  the  get-character  and  skip-character  operations  were  of  course  called 
  CHAR  and  CHDR. 
 
 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  cdr 
 
  /ku'dr/  or  /kuh'dr/  [LISP]  To  skip  past  the  first  item  from  a 
  list  of  things  (generalised  from  the  LISP  operation  on  binary 
  tree  structures,  which  returns  a  list  consisting  of  all  but 
  the  first  element  of  its  argument).  In  the  form  "cdr  down", 
  to  trace  down  a  list  of  elements:  "Shall  we  cdr  down  the 
  agenda?"  Usage:  silly.  See  also  {loop  through}. 
 
  Historical  note:  The  instruction  format  of  the  IBM  7090  that 
  hosted  the  original  LISP  implementation  featured  two  15  bit 
  fields  called  the  address"  and  decrement"  parts  The  term 
  cdr"  was  originally  "Contents  of  Decrement  part  of  Register". 
  Similarly,  car"  stood  for  "Contents  of  Address  part  of 
  Register". 
 
  The  cdr  and  car  operations  have  since  become  bases  for 
  formation  of  compound  metaphors  in  non-LISP  contexts.  GLS 
  recalls,  for  example,  a  programming  project  in  which  strings 
  were  represented  as  linked  lists;  the  get-character  and 
  skip-character  operations  were  of  course  called  CHAR  and  CHDR. 
 
  [{Jargon  File}] 
 
 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  CD-R 
 
  {Compact  Disc  Recordable} 
 
 
 
  From  V.E.R.A.  --  Virtual  Entity  of  Relevant  Acronyms  13  March  2001  [vera]: 
 
  CDR 
  Compact  Disk  -  Recordable  (CD),  "CD-R" 
 
 

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