April 2026
Meeting Notes

Compiled by Dave Jaffe

Contributions from Kevin Appert and others

SVFIG on Google+ Hangout: long url - tinyurl

SVFIG on Google+ - SVFIG on YouTube - SVFIG on YouTube Live - SVFIG on MeetUp

SVFIG YouTube Channel

Zoom Chat     Screenshot

09:30

Start of the Meeting - Kevin Appert, SVFIG Program Chairman

• Video (3:00)

09:31

Announcements - Kevin Appert, SVFIG Program Chairman
Kevin thanked SVFIG frequent presenters: Bill Ragsdale, Bob Armstrong, and Brad Nelson.

09:33

Beyond Bitcoin & Forth: Forth Everywhere - Even in AI llama.cpp - Liang Ng
"I will investigate Forth-like stack machine functions in Microsoft BitNet llama.cpp and propose using Phoscript (a Forth variant) as the lingua franca interfacing AI prompts (human languages) and conventional programming languages."

• Video (32:20)

10:04

Screenshot

10:05

Interpreter-free Forth - Turning JIT into AOT Compilation - Nelo Mitranim
Melo will talk about Astril, his version of Forth that does not employ an interpreter. Here are his presentation points:

• Freedom of execution: freely mixing JIT and AOT
• Creating Forth programs without an interpreter or runtime
• Ending the split between interpreted and compiled languages
• Not a "turnkey" approach

• Video (26:34)

10:31

Enter Chuck Moore - Kay Lack
"I've researched the start of Chuck Moore's career: his work at the Smithsonian Observatory. Even as a young man, one can see his minimalist approach at work."

Video (15:26)

Slides

Predictions for Photographic Satellite Tracking Stations - 1958

10:47

Primeval Forth on the Web - Brad Nelson
"Chuck Moore's first first 'FORTH' to bear that name ran on the IBM 1130. Remarkably, due to the preservation work of the great community around the IBM 1130, a usable copy of this Forth still exists! I've built a Web based emulator that anyone can use to give it a spin. I'll discuss building the emulator and the internals of Chuck's "primeval" Forth."

Video (49:13)

Slides

An IBM 1130 Emulator for Forth

Emulator

Forth written by Chuck Moore in 1968

ProtoFORTH - Charles Anthony's work (Chuck Moore's IBM 1130 FORTH)

Programming a Problem-Oriented-Language

11:36

Alternatives to CoSy - Are there any? - Bob Armstring
Bob will compare simple computations with Python, some APL, and any other suggested programming environments with CoSy.

Video (31:11)

12:07

End of the Meeting

Future

CoSy Update - Bob Armstring
"I can talk on progress toward eclipsing the trade computing environments with Forth CoSy for the ultimate target market of female entrepreneurs who consistently compare CoSy with Evernote and Notion, both of which have ~ $B valuations after a couple of $100m investments. But both don't have the radically open foundation provided by Forth. (Notion does evolve from SmallTalk.) "

Automatic Differentiation in Forth - Brad Nelson
"I'll explore using Forth Recognizers to implement automatic differentiation and explore differential programming."

Forth Recognizers in SwiftForth

Automatic Differentiation

Differentiable Programming

Windows Shell Support in Win32Forth - Bill Ragsdale
Bill will examine the three levels of direct user's Forth interface to a Windows based PC.

Creole Forth and Picar-X, Part 2 - Joseph M. O'Connor
Joseph will continue his presentation of Creole Forth for Python which he used to develop commands for the Picar-X robotic car.

Smart Token System - Don Golding
Don will discuss a combination of Color Forth constructs: a packet like structure for the cell.

Getting Started with arrayForth - Greg Bailey
"I will present a video on the simple process of downloading, installing, and using arrayForth 3."

Direction Finding - Andrew Korsak
Andy is planning to present this application.

Building GUIs in Forth, without the Gunk - Xuyang Chen

Fiji - Jack J. Woehr
Fiji
Fiji Language

The Game of Bridgit - Bob Armstrong

Other Items:

Forth for MSP430

Forth Tutorials

Forth CPUs

Forth Articles and Blogs

Forth Programming Books

Forth Jobs - submitted by Dennis Ruffer

Other Jobs

Green Arrays

Forth People

Products in Forth

Misc Forth Stuff

Computers

Components

Software Applications

Space Applications

Space stuff

Programming Languages other than Forth

Operating Systems

Utilities

Hardware

Other Books and Magazines

Manuals & Documentation

Articles

Applications

Stores

Robots

Games

Companies

Lectures

People

Surplus Houses

Meetings

Courses

Trade Shows

Podcasts

Personal Computer History

Look Back on Some of Apple’s Forgotten Legacies at 50 Years

Designing the First Apple Macintosh: The Engineers’ Story

Retro Computing

Advancement of Technology - Using Slides Rules

Tutorials

Education

Contests

Blogs

Other

Celebrating the Art of Code

ENIAC, the First General-Purpose Digital Computer, Turns 80