L. Peter Deutsch By joeyandreini Aug 7, 1946 Born Laurence Peter Deutsch Period: Aug 7, 1946 to 2018 L. Peter Deutsch 1957 Started Programming 1963 Wrote the PDP-1 Lisp 1.5 implementation 1964 Started attending U.C. Berkley 1973 Received a Ph.D. in computer science from the University of California, Berkeley 1988 Original author of Ghostscript 1992 Association for Computing Machinery Software System Award 1994 Fellow of the ACM 1994 Fallacies of Distributed Computing 2002 Deutsch quit work on Ghostscript in order to study musical composition Sep 12, 2007 Deutsch changed his legal first name from "Laurence" to "L" 2009 Postgraduate music program at California State University, East Bay, 2011 Master of Arts (M.A.)