Source code to PC/GEOS has been published to GitHub #VintageComputing #MSDOS #GUI #Commodore « Adafruit Industries – Makers, hackers, artists, designers and engineers!
GEOS for the Commodore 64
GeoWorks: The Other Windows
GEOS - C64-Wiki
GEOS (16-bit operating system) - Wikipedia
GEOS (8-bit operating system) - Wikipedia
GeoWorks (PC/GEOS) Version 1.2
PC/GEOS - CLC Definition
geoPublish - Wikipedia
GeoWorks: The Other Windows
Crazy Projekt Demoseite 1
WinWorld: GEOS/GeoWorks 2.x
GeoWorks: The Other Windows
GitHub - bluewaysw/pcgeos: #FreeGEOS source codes. The offical home of the PC/GEOS operating system technology. For personal computing fans. For all developers and assembly lovers. For YOU!
PC/GEOS: Noch 30 Jahre später hat die Betriebssystemerweiterung ihre Liebhaber | heise online