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872 results for “interlisp”
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The manual of EMYCIN, a rare document published in 1981, is now available at @bitsavers Bitsavers. Developed in Interlisp at Stanford University, the EMYCIN expert system shell was derived from the early expert system MYCIN.
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👆 The 1984 episode of Computer Chronicles on Artificial Intelligence also featured a demonstration of Dipmeter Advisor, an oil drilling expert system for Interlisp-D.
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The 1984 Artificial Intelligence episode of the Computer Chronicles TV show, hosted by the late Stewart Cheifet, featured demonstrations of some Interlisp applications: the ONCOCIN expert system for medical consultation and the KEE Knowledge Engineering Environment expert system shell.
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SpinPro™ was an expert system to design procedures for Beckman Instruments ultracentrifugation machines at biochemistry labs. Developed in Interlisp-D on Xerox 1108 workstations, SpinPro™ was deployed to IBM PC/XT computers as an application that ran under Golden Common Lisp by Gold Hill.
To learn more about SpinPro™ see this 1985 paper:
http://www.bitsavers.org/pdf/xerox/interlisp-d/newsletters/Masterscope_1-03_Aug85.pdf#page=2
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← (POP QUIZ)
YOUR.ANSWERLet's do an Interlisp quiz. Can you name at least one expert system developed with Interlisp?
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Question posted to Hacker News:
Ask HN: What Were the Differences Between Symbolics Genera and Xerox Interlisp-D
https://news.ycombinator.com/item?id=36713595 -
Medley Interlisp has the most tightly integrated combination of system software, application platform, programming language, development environment, tools, and runtime platform I've ever experienced.
A rare "whole greater than the sum of its parts" level of synergy mostly seen only on Smalltalk workstations and Lisp Machines.
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@amoroso I would be interested in hearing and reading about if you had a conversation with noted finely aged hardware guru @jasmaz about 80s (or earlier..) #interlisp -machines. Sadly I don't know anything about Xerox AI Workstations (yet). #vintage #LispMachines
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My Medley Interlisp post was shared on Hacker News, got over a hundred upvotes, and ended up on the front page, where it still remained almost a day later after climbing up to number 5. So far my post received over 27K views, and counting.
I'm really happy Medley Interlisp is gaining some very well deserved attention.
https://journal.paoloamoroso.com/my-encounter-with-medley-interlisp
https://news.ycombinator.com/item?id=34300806
← (MIND 'BLOWN)
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If you're into retrocomputing stop what you're doing and check out Medley Interlisp, a restoration of the software environment of Xerox Lisp Machines rehosted on modern systems.
It's the most fascinating and advanced software development environment I've ever seen. I posted about my first impressions, why I love Medley Interlisp, and how I plan to use it:
https://journal.paoloamoroso.com/my-encounter-with-medley-interlisp
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Like other computing and network systems developed at Xerox, Interlisp-D supported XCCS (Xerox Character Code Standard), a 16-bit character encoding released in the 1980s. XCCS predated and influenced Unicode.
This is version 2.0 of the standard:
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The highest class of the LOOPS hierarchy is called Tofu, an acronym for "Top of the universe". The Lisp Object-Oriented Programming System (LOOPS) is the object extension of Interlisp.
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Ryan Burnside entered the Autumn Lisp Game Jam 2025 with Interlisp Hungarian Rings, a puzzle he wrote in Interlisp. The project page provides instructions for downloading and playing the game:
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The 1986 article "Xerox proves it moves ideas into the market" discussed the inability of Xerox to turn innovations into products. It also explained why the company was better positioned than other vendors for delivering low-cost AI solutions and how it was improving at bringing its innovations to the market:
Brian Boyle, president of Novon Research in San Francisco, says that Xerox used to practically give their technology away by putting it into the public domain, but he now contends that the company appears to be redirecting its thinking, citing the company's OEM strategy with the 1185 and 1186 as an example.
https://bitsavers.org/magazines/Mini-Micro_Systems/198603.pdf#page=35
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Did you know that the Medley Interlisp Project has a YouTube channel? We publish archival footage, demonstrations of Interlisp systems, tutorials, and more.
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@amoroso @[email protected] @[email protected] @ckeen @wasamasa @fnat @gramian
Nunc "middle button menu" habemus!
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Dear @pizzapal I haven't read
a discussion of pattern matching inference citations in #Interlisp The Language And Its Usage 1986 by Kaisler for DARPA.
#gopher
me: gopher://gopher.club/1/users/screwtape
gopher://tilde.institute/0/~screwtape/209934078-dear-pizzapal-i-havent-read.txt
#webproxy
me: https://gopher.floodgap.com/gopher/gw.lite?=gopher.club+70+312f75736572732f7363726577746170652f
https://gopher.floodgap.com/gopher/gw.lite?=tilde.institute+70+302f7e7363726577746170652f3230393933343037382d646561722d70697a7a6170616c2d692d686176656e742d726561642e747874 -
Visiting interlisp.org with the Lynx web browser on Medley Interlisp. The main window is a VT100 terminal emulator running Lynx on the host operating system, Linux in this case. The smaller window next to the terminal is a VT100 keypad.
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And now for something completely meta: Interlisp-10 inside Medley Interlisp.
The terminal emulator of the window at center is connected to SDF's PDP-10 system running Interlisp-10 under TOPS-20 (TWENEX). The shell with the terminal emulator and Medley Interlisp are running on Linux.
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At PARC Chuck Geschke and John Warnock designed the Interpress device-independent page description language supported by Xerox printers and other systems, including Interlisp-D. This work was the foundation for PostScript, which Geschke and Warnock developed at their startup Adobe after leaving PARC.
For a comprehensive introduction to Interpress see:
https://openlibrary.org/works/OL5092854W/Interpress_the_source_book?edition=key%3A/books/OL2527858M
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On World Digital Preservation Day 2025 Eleanor Young gave the virtual talk "The Medley Interlisp Project: Reviving a Historical Software System". The video recording and transcript are available here:
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Like other computing and network systems developed at Xerox, Interlisp-D supported XCCS (Xerox Character Code Standard), a 16-bit character encoding released in the 1980s. XCCS predated and influenced Unicode.
This is version 2.0 of the standard:
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Like other computing and network systems developed at Xerox, Interlisp-D supported XCCS (Xerox Character Code Standard), a 16-bit character encoding released in the 1980s. XCCS predated and influenced Unicode.
This is version 2.0 of the standard:
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Like other computing and network systems developed at Xerox, Interlisp-D supported XCCS (Xerox Character Code Standard), a 16-bit character encoding released in the 1980s. XCCS predated and influenced Unicode.
This is version 2.0 of the standard:
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Like other computing and network systems developed at Xerox, Interlisp-D supported XCCS (Xerox Character Code Standard), a 16-bit character encoding released in the 1980s. XCCS predated and influenced Unicode.
This is version 2.0 of the standard:
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And now for something completely meta: Interlisp-10 inside Medley Interlisp.
The terminal emulator of the window at center is connected to SDF's PDP-10 system running Interlisp-10 under TOPS-20 (TWENEX). The shell with the terminal emulator and Medley Interlisp are running on Linux.
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And now for something completely meta: Interlisp-10 inside Medley Interlisp.
The terminal emulator of the window at center is connected to SDF's PDP-10 system running Interlisp-10 under TOPS-20 (TWENEX). The shell with the terminal emulator and Medley Interlisp are running on Linux.
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And now for something completely meta: Interlisp-10 inside Medley Interlisp.
The terminal emulator of the window at center is connected to SDF's PDP-10 system running Interlisp-10 under TOPS-20 (TWENEX). The shell with the terminal emulator and Medley Interlisp are running on Linux.
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This article by @masinter Larry Masinter and Bill VanMelle, published in December of 1981, reported on the state of Common Lisp from the angle of the Interlisp community. It's interesting as it covers the early stage of standardization, when the specification and design work was under way but no implementations were available yet.
