BBN LISP (also stylized BBN-Lisp) was a dialect of the Lisp programming language by Bolt, Beranek and Newman Inc. in Cambridge, Massachusetts. It was based on L. Peter Deutsch's implementation of Lisp for the PDP-1 (called Basic PDP-1 LISP), which was developed from 1960 to 1964. Over time the language was expanded until it became its own separate dialect in 1966.[1]

BBN LISP is most notable for being the predecessor of Interlisp.


  1. ^ "BBN-LISP". Interlisp family. Software Preservation Group. Retrieved 17 March 2016.
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