Plan 9 was basically more Unix than Unix. More things were files, and more things were file systems (Networking was done with file systems.) The design ideas

Plan 9 was basically more Unix than Unix. More things were files, and more things were file systems (Networking was done with file systems.) The design ideas originated with Unix. They were quite explicit, read this book: http://www.catb.org/esr/writings/taoup/html/index.html http://www.catb.org/esr/writings/taoup/html/index.html