LISP implementations on small machines

Bill Degnan billdegnan at
Wed Oct 2 08:22:45 CDT 2019

On Wed, Oct 2, 2019 at 4:39 AM Lars Brinkhoff via cctech <
cctech at> wrote:

> Mark Kahrs wrote:
> > The first implementation was done for the 7090 by McCarthy (hence CAR
> > and CDR --- Contents of Address Register and Contents of Decrement
> > Register).
> Or was it an IBM 704?

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.

More information about the cctech mailing list