She became involved with Forth while she was at the University of Arizona, but working part-time for NRAO. While she initially aimed to rewrite their systems (written in Forth) in FORTRAN, her discovery of the power of Forth convinced her to leave the University to work for NRAO and KPNO, where she wrote the first Forth manual and started popularizing the language in the scientific community. Since then, she has become an expert in the language and one of its main proponents. She is an author of several books on the subject and has given many training seminars on its usage.
From 1980 till 2006 she was President of FORTH, Inc., headquartered in the Los Angeles area. From 1986 to 1994 she was chair of the Technical Committee X3J14 that developed the ANSI Standard (X3.215-1994) for the Forth programming language.
In 2006 she retired and is living in Hawai`i, but continues with occasional Forth-related writing and teaching projects.
- Conklin, Edward K.; Elizabeth D. Rather et al. Forth Programmer's Handbook (paperback). Forth Inc. p. 240. ISBN 0-9662156-0-5.
- Rather, Elizabeth D. Forth Application Techniques (spiral bound). Forth Inc. p. 158. ISBN 0-9662156-1-3.
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