Unix V4: Only known copy may lurk on recently unearthed tape

A tape-based piece of unique Unix history may have been lying quietly in storage at the University of Utah for 50+ years. The question is whether researchers will be able to take this piece of middle-aged media and rewind it back to the 1970s to get the data off.

See also

https://archive.org/details/utah_unix_v4_raw

TAR file

http://squoze.net/UNIX/v4/