cdr

6 definitions found

cdr - Collaborative International Dictionary of English v.0.48 :

  CD-R \CD-R\ n. [from Compact Disk-Recordable.]
     a recordable compact disk; a compact disc on which you can
     write only once and thereafter is read-only.
  
     Syn: compact disc recordable, CD-WO, compact disc write-once.
          [WordNet 1.5]

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

  cdr
  
     <programming> /ku'dr/ or /kuh'dr/ The LISP operation that
     returns the right-hand node of a binary tree structure.  In
     the typical case where the tree is used to store a list, the
     cdr is the tail of the list, i.e. all but the first element.
  
     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".
  
     [Jargon File]
  
     (2007-02-28)
  

  Committed Data Rate
  CDR
  
     <communications> (CDR) The data transfer rate that an ISP
     guarantees a virtual circuit will carry.  The CDR is the
     data portion of Committed Information Rate (CIR).
  
     (2007-02-28)
  

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

  cdr
   /ku'dr/, /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.
  

cdr - V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006) :

  CDR
         Contents of the Decrement Register (IBM, ELISP, CAR)
         

  CDR
         Compact Disk - Recordable (CD), "CD-R"