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UNIX V4 is back: I booted into the 1973 OS and it made me weirdly happy

I booted UNIX V4 (first C rewrite) in a PDP‑11 emulator. It feels tactile—no backspace, staggered print, slower typing, and ...
Macworld

Unix turns 40: The past, present and future of the OS

Forty years ago this summer, a programmer sat down and knocked out in one month what would become one of the most important pieces of software ever created. In August 1969, Ken Thompson, a programmer ...

Hidden in storage, a University of Utah research associate happened upon the only known copy of this ‘revolutionary’ software

It took careful work to recover the UNIX V4 operating system from the 9-track magnetic tape. The software is foundational for ...