UNIX V4 tape successfully recovered: First ever version of UNIX written in C is running again

UNIX V4, the first ever version of the UNIX operating system in which the kernel was written in the then-new C programming ...
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52 years later, UNIX V4 has been rediscovered and digitized

Linux, macOS, FreeBSD, Android, and other operating systems can trace their lineage back to the early commercial versions of ...