colorForth is a minimalistic operating system for an x86 PC

2020 Sep 04


colorForth cf2020 edition will be rolled out as soon as possible, maybe in 2021, but for now there is cf2019 :


Now available on GitHub


Latest cf2019 distribution documentation : cf2019_colorForth.pdf

Presentation by Howerd Oakford at colorForth_KüstenForth-Treffen.pptx

colorForth_in_Black_and_White.pdf   PDF file

colorForth_in_Black_and_White.pptx PowerPoint



Presentations by Howerd Oakford at EuroForth 2019 :

And from EuroForth 2017 :  cryptoColorForth.pdf  PDF file


See also The colorForth Magenta Variable and colorForth and the Art of the Impossible , my first impressions of colorForth.


colorForth is a simple dialect of Forth created by the inventor of Forth, Chuck Moore.

cf2019 is a distribution that runs on a Windows PC in bochs, or natively from a USB drive.


Download cf2019_Issue_2019Apr04.exe colorForth system packaged with Bochs.


Double left click ( run ) go.bat to run the cf2019.img image in the bochs PC emulator.


Documentation : cf2019_colorForth.pdf

cf2019 uses BIOS calls to access the USB drive, so it is no longer necessary to have a floppy disk drive to run natively!

Full assembler source file, NASM assembler, colorForth source and batch files to create the colorForth image, and run it in the bochs emulator.

Real colorForth running on (just about) any Windows PC.

bochs is available from    Thank you to all the bochs developers...

Download the zip file here  and

self-extracting zip file here cf2019_Issue_2019Apr04.exe

Also available from SourceForge : 

Bug reports, feedback and comments to  Howerd Oakford


Legacy – requires a floppy disc drive to run natively :

cf2012bochs colorForth system packaged with Bochs

Download the zip file here  and self-extracting zip file here cf2012bochs2012Oct21release.exe

cfdos is a DOS program to display colorForth pre-parsed source blocks. This program will work on any computer that runs or emulates DOS, and allows you to view colorForth source, in both normal and "colour blind" mode. It features a file listing utility (F6) which displays all files of type *.BLK in the same directory, and can copy them to a formatted floppy disk. colorForth Explorer Edition is the latest colorForth stand-alone operating system, packaged together with a Windows/DOS program to display colorForth source and create bootable floppy disks.

Don't be deceived by the fact that colorForth boots from a floppy - this is an experimental state-of-the-art operating system for a PC.

See The colorForth Magenta Variable and colorForth and the Art of the Impossible  my first impressions of colorForth .