Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!gem.mps.ohio-state.edu!apple!cambridge.apple.com!bill From: bill@cambridge.apple.com (Bill St. Clair) Newsgroups: comp.lang.lisp Subject: Re: Beginner Question ? Message-ID: <131@brazil.cambridge.apple.com> Date: 13 Sep 89 17:21:01 GMT References: <11521602MR@MSU> Reply-To: bill@brazil.UUCP (Bill St. Clair) Organization: Apple Computer Inc, Cambridge, MA Lines: 5 As I heard it, CAR is Contents of Address Register, and CDR is Contents of Decrement Register. These were hardware registers used in one of the early implementations of Lisp. Bill St. Clair (bill@CAMBRIDGE.APPLE.COM)