Hacker News
- Computer History Museum Makes Historic CP/M Operating System Source Code Available to the Public http://www.computerhistory.org/_static/atchm/early-digital-research-cpm-source-code/ 7 comments opensource
- The History of CP/M, by Dr Gary Kildall (from Dr. Dobb's) https://www.retrotechnology.com/dri/CPM_history_kildall.txt 3 comments programming