UNIX version 4 is quite special on account of being the first UNIX to be written in C instead of PDP-11 ASM, but it was also considered to have been lost to the ravages of time. Joyfully, we can ...

I booted UNIX V4 (first C rewrite) in a PDP‑11 emulator. It feels tactile—no backspace, staggered print, slower typing, and it forced me to slow down. Classic Unix tools (ls, cat, ed, cal, dc) and ...

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 ...

When we think of important historical discoveries, many of us probably imagine big archaeological finds, such as the LiDAR-assisted discovery of two mountain cities in eastern Uzbekistan in 2024. But ...