Not totally. The share / guide and even the Ibm os was open source up to a point you can still run Ibm mainframe on pc for those 1970 era. No one care about s

Not totally. The share / guide and even the Ibm os was open source up to a point you can still run Ibm mainframe on pc for those 1970 era. No one care about software. It is bill gate who start the commericalism and the availability of cheap pc that start it all. What stallman did was to point to the importance of licensing scheme for the cooperation to work. Linus chose the license to avoid unix and minix issue.