LISP implementations on small machines

Jack Harper harper at
Wed Oct 2 14:36:25 CDT 2019

Hello List -That jives with a conversation I had with John McCarthy before he died.He said that he and friends began the LISP 1.5 (really 1.0) implementation on the IBM 709 - and we both agreed that the idea of LISP running in an enormous pile of vacuum tubes was and is amazing:)Jack-----------------------------------------------------Jack HarperSecure Outcomes Inc2942 Evergreen ParkwaySuite 300Evergreen, Colorado 80439303.670.8375 for Product Info.
-------- Original message --------From: Lars Brinkhoff via cctalk <cctalk at> Date: 10/2/19  07:42  (GMT-07:00) To: Bill Degnan via cctech <cctech at> Cc: Bill Degnan <billdegnan at> Subject: Re: LISP implementations on small machines Bill Degnan wrote:> First full version 7090 and then a version was ported tot he PDP-1> that was less powerful.  This is straight from the LISP manual on> site.Which LISP manual is that?The LISP I Programmer's Manual from 1960 says IBM 704.  It also says "aversion of LISP I is being prepared for the IBM 709".

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