GS/OS is really for the Apple //GS to imitate the Macintosh. The Apple //GS was of the Apple // series but had better graphics and sound than the classic Apple // line. The Apple //GS tried to compete with the Commodore Amiga 1000 and Atari ST series, while still running classic Apple // programs. It had a 3.5" floppy drive and these GS/OS disks would install on the //GS hard drive.
gsosinstalldisks.zip (2.6 MiB / 2.73 MB)
GS/OS v4.0.2 install disks for Apple II GS (1993) / Zipped
apple_gsos_versions.zip (6.1 MiB / 6.4 MB)
GS/OS 1.0, 1.1, 3.1, 3.2, 4.0, 5.0.2, 5.0.3, 5.0.4, 6.0.1 / System disks for Apple II GS / Zipped
This requires an Apple II GS system or emulator
Emulating this? It should run fine under: Basilisk II