[TUHS] unix v4 tape found

[Diomidis Spinellis via TUHS]

The finding and successful extraction of the tape is an amazing 
development!  I updated the Unix History Repository on GitHub [1] to 
incorporate the tape's contents [2].  As with other snapshots, the 
commit timestamps are derived from the file timestamps while the commit 
authors are derived from a manually-created map file [3].  I updated the 
author map file based on information I had gathered for preceding and 
following Unix Research editions.  I explicitly put "ken,dmr" in all 
source code files where I lacked author information (this is also the 
default introduced via a .* regular expression) to mark missing details. 
  If you can fill any gaps or submit corrections (via a list reply, 
private email, or GitHub PR), I'll incorporate your input in the next 
repo update.  In particular I think it would important to credit the 
authors of the following.


/usr/sno: SNOBOL III
/usr/source/s3/fp*.s: Floating point simulator
/usr/source/s3/qsort.s
/usr/source/s4/{cos,gamma,hypot,sin}.s: Math library


[1] https://github.com/dspinellis/unix-history-repo
[2] 
https://github.com/dspinellis/unix-history-repo/tree/Research-V4-Snapshot-Development
[3] 
https://github.com/dspinellis/unix-history-make/blob/master/src/author-path/Research-V4


Diomidis - https://www.spinellis.gr

On 20-Dec-25 03:53, Angelo Papenhoff via TUHS wrote:
> I extracted it: http://squoze.net/UNIX/v4/
> 
> aap

[...]

>>>  From mastodon:
>>>
>>> <https://discuss.systems/@ricci>
>>> Rob Ricci
>>> ricci at discuss.systems <https://discuss.systems/@ricci>
>>>
>>> While cleaning a storage room, our staff found this tape containing #UNIX
>>> <https://discuss.systems/tags/UNIX> v4 from Bell Labs, circa 1973
>>>
>>> Apparently no other complete copies are known to exist:
>>> gunkies.org/wiki/UNIX_Fourth_E
>>> <https://gunkies.org/wiki/UNIX_Fourth_Edition>
>>>
>>> We have arranged to deliver it to the Computer History Museum
>>>