The irony is that IBM had one of the first Open Source communities: SHARE, dating back to 1955, shared software up to and including a whole OS, SOS (SHARE Opera

The irony is that IBM had one of the first Open Source communities: SHARE, dating back to 1955, shared software up to and including a whole OS, SOS (SHARE Operating System), well before Unix or home computers even existed. https://en.wikipedia.org/wiki/SHARE_(computing) https://en.wikipedia.org/wiki/SHARE_(computing)