Early Days of Unix at Bell Labs, Brian Kernighan https://www.youtube.com/watch?v=ECCr_KFl41E
Linus Torvalds (TED talk) https://www.youtube.com/watch?v=o8NPllzkFhE
UNIX: A History and a Memoir (Brian Kernighan) https://www.youtube.com/watch?v=WEb_YL1K1Qg
UNIX Research https://en.wikipedia.org/wiki/Research_Unix
