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SCO Ancient Unix

Below are links to the source code for older versions of UNIX. Use of all versions is strictly for educational use only, and is restricted by the license agreed upon by entering this site. Ancient UNIX is provided as a courtesy to UNIX enthusiasts and is not formally supported by SCO. For more information on Ancient UNIX and the hardware it runs on, please visit the PDP-11 UNIX Preservation Society.

To obtain the source code and related files, please choose one of the following:

5th Edition UNIX

6th Edition UNIX

7th Edition UNIX

Mini UNIX

UNIX System III

UNIX 32V

We would like to thank the PUPS organization for helping us make this code available. Now that you have agreed to the license you may choose to apply for access to their archive of older UNIX or request a CD of this archive.