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Language peer sets for ESIX:
United States
United States/1967
Designed 1967
1960s languages
Third generation
High Cold War
Genus Generation of JOSS I
On-Line
Generation of JOSS I
JOSS family
Conversational
Generation of JOSS I/1967
JOSS family/1967
Conversational/1967
Generation of JOSS I/United States
JOSS family/United States
Conversational/United States
On-Line
On-Line/1967
On-Line/us

ESIX(ID:5926/esi003)

ESI extended, JOSS dialect 

alternate simple view
Country: United States
Designed 1967
Genus: Generation of JOSS I
Sammet category: On-Line


for Engineering and Scientific Interpreter eXtended

1967 Bob Supnik Applied Data Research - had bigger memory requirements and transcendental functions


Related languages
ESI ESIX   Extension of
ESIX FOCAL   Influence

Resources
  • Page at Debian
    ESI-X was the first stored program scientific interpreter for the PDP-8. ESI was designed by Dave Waks on 8/3/66 and was vaguely based on RAND's JOSS. In 1967 Bob Supnik extended the program to support 8KW of memory, and this became the "ESI-extended" or ESI-X FOCAL was eventually the successor of ESI-X.
  • Online documentation
    In 1967, Bob Supnik extended the program to use 8KW of memory and added
    the transcendental functions.  Thereafter, the 4KW version was called
    ESI-B (basic) and the 8KW version ESI-X (extended).  In 1968, Digital
    Equipment wrote a very similar program, FOCAL, and gave it away for free;
    this ended ESI-X' marketability.  In the 1970's, Applied Data Research
    gave the binaries of the program to DECUS.  However, the source was
    believed lost.

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