So why are the fields called CAR and CDR anyway?
(in before your other car)
Name:
Anonymous2007-09-28 17:00 ID:CxBKYAO9
Lisp was originally implemented on the IBM 704 computer, in the late 1950s. On the 704, a cons cell was represented by a single 36-bit machine word containing two parts: an address part and a decrement part, each 15 bits long. The assembly functions used to extract either part of a machine word were called car (Contents of Address of Register) and cdr (Contents of Decrement of Register).