CP/M 1.x

EARLY CP/M SOURCE : 12K This is a version of CP/M that is VERY early. It says "Copyright Gary Killdall". It may even be before he formed Digital Research. The source is in PLM. Text in the src call it FDOS.

ゲーリー・キルドールがPL/Mで書いたCP/Mのソースコードだ！

http://www.cpm.z80.de/source.html