Meyer, Peter B. (contributor) - 2003 - [Elektronische Ressource]
’s patent
expiration 1800
Patent pool
agreement in U.S.,
1867
Microprocessors
available, 1971
Internet (circa
1970), AT … and
newsletter,
1975-1980s
Internet bulletin
boards and the
Linux source code
itself, starting 1991
Price of entry … Internet
bulletin boards
Tacit
knowledge,
skills, and
prerequisite
tools
Steam engine
engineering or
operation …