drw@cullvax.UUCP (03/09/87)
dant@tekla.tek.com.tek.com (Dan Tilque;1893;92-789;LP=A;60sB) writes: > It seems that on the machine where > the language was developed (at Stanford, I think; don't know what machine) MIT, you fool! > there were two registers: a Current Address Register (CAR) and a Current > Decrement Register (CDR). The machine was some sort of IBM 7xx series. The whole story in in the "Lisp 1.5 Reference Manual" (or some such) written by John McCarthy and published by the *MIT* Press. Dale (Grumble! Snort! *Stanford* weenies invent Lisp? Hah!) -- Dale Worley Cullinet Software UUCP: ...!seismo!harvard!mit-eddie!cullvax!drw ARPA: cullvax!drw@eddie.mit.edu
dmt@mtunb.UUCP (03/11/87)
In article <890@cullvax.UUCP> drw@cullvax.UUCP (Dale Worley) writes: >dant@tekla.tek.com.tek.com (Dan Tilque;1893;92-789;LP=A;60sB) writes: >> It seems that on the machine where >> the language was developed (at Stanford, I think; don't know what machine) > >MIT, you fool! True, but not everyone on the net has been around >25 years and remembers it. > >> there were two registers: a Current Address Register (CAR) and a Current >> Decrement Register (CDR). CAR and CDR stand for (respectively) CONTENTS of Address Register, and CONTENTS of Decrement Register. The two registers contained pointers to the next nodes of the tree. > >The machine was some sort of IBM 7xx series. It was a 7094, which was the premier computer of the time. MIT had one, the main machine in its Comp Center. Another WAS the Bell Labs Comp Center in Murray Hill. To give you some idea of its power, main memory was 32Kwords of 36 bits each, with a cycle time of 1 microsecond. The OS was a single-tasking system that makes MS-DOS look smooth by comparison. (Yes, I know about the 7030 [STRETCH], but it was never really commercially "available", always a "beta test", and the 7074 was strictly a "business" computer. The 7094 was THE big machine for research labs.) >The whole story in in >the "Lisp 1.5 Reference Manual" (or some such) written by John >McCarthy and published by the *MIT* Press. > >Dale >(Grumble! Snort! *Stanford* weenies invent Lisp? Hah!) I never even considered Stanford when selecting grad studies in "computers" (no CS depts) in 1962. At the time, MIT was definitely where the action was. Stanford's current eminence started later. >-- >Dale Worley Cullinet Software >UUCP: ...!seismo!harvard!mit-eddie!cullvax!drw >ARPA: cullvax!drw@eddie.mit.edu +---------------------------------------------------------------+ | Dave Tutelman | | Physical - AT&T - Lincroft, NJ | | Logical - ...ihnp4!mtuxo!mtunb!dmt | | Audible - (201) 576 2442 | +---------------------------------------------------------------+