L Peter Deutsch

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L Peter Deutsch
Born (1946-08-07) August 7, 1946 (age 71)
Boston, Massachusetts
Alma mater University of California, Berkeley

L Peter Deutsch or Peter Deutsch (born Laurence Peter Deutsch, August 7, 1946 in Boston, Massachusetts) is the founder of Aladdin Enterprises and creator of Ghostscript, a free software PostScript and PDF interpreter.

Deutsch's other work includes the definitive Smalltalk implementation that, among other innovations, inspired Java just-in-time compilation technology 15-or-so years later.[citation needed]

He also wrote the PDP-1 Lisp 1.5 implementation, Basic PDP-1 LISP, "while still in short pants" and finished it in 1963, when he was 17 years old.[1]

He is also the author of several Request for Comments (RFCs), The Eight Fallacies of Distributed Computing, and originated the Deutsch limit adage about visual programming languages.

Deutsch received a Ph.D. in computer science from the University of California, Berkeley in 1973,[2] and has previously worked at Xerox PARC and Sun Microsystems. In 1994, he was inducted as a Fellow of the Association for Computing Machinery.

Deutsch changed his legal first name from "Laurence" to "L" on September 12, 2007.[3] His published work and other public references before that time generally use the name L. Peter Deutsch (with a dot after the L).

After auditing undergraduate music courses at Stanford University, in January 2009, he entered the postgraduate music program at California State University, East Bay, and was awarded a Master of Arts (M.A.) in March 2011. As of mid-2011, he has had six compositions performed on public concerts, and now generally identifies himself as a composer rather than a software developer.


  1. ^ The LISP Implementation for the PDP-1 Computer, L. Peter Deutsch and Edmund C Berkeley, March 1964
  2. ^ L. Peter Deutsch (June 1973). "An interactive program verifier". University of California, Berkeley. 
  3. ^ "Case CIV464587 - In Re: Laurence Deutsch". San Mateo County Civil Court. September 12, 2007. Retrieved April 16, 2011. 

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