Further reading
- [https://archive.org/stream/hack42_Apricot_Portable_Technical_Reference_Manual_Sections_djvu.txt][https://archive.org/download/hack42_Apricot_Portable_Technical_Reference_Manual_Sections_text.pdf] (228 pages)
- [https://archive.org/details/bitsavers_digitalResGraphicsExtensionProgrammersGuideSep83_2557741/5000-2024_GSX_Graphics_Extension_Programmers_Guide_Sep83][https://archive.org/stream/bitsavers_digitalResGraphicsExtensionProgrammersGuideSep83_2557741/5000-2024_GSX_Graphics_Extension_Programmers_Guide_Sep83_djvu.txt][https://archive.org/download/bitsavers_digitalResGraphicsExtensionProgrammersGuideSep83_2557741/5000-2024_GSX_Graphics_Extension_Programmers_Guide_Sep83_text.pdf]
External links
- GEM - history, documentation and links to various open-source GEM projects
- Afros - a distribution of Atari OS components (consisting of for example EmuTOS), aimed specifically at ARAnyM
- Aranym Atari Running on Any Machine: an open source emulator/virtual machine that can run Atari GEM applications
- Creating of TOS (part 1) Landon Dyer, one of original member of "The Monterey Group"
- Creating of TOS (part 2) Landon Dyer, one of original member of "The Monterey Group"
- GEM demo 1985 Most of the program is about the MAC
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